The .308 just lacks the horsepower for truly long-range shooting. Fear not. Note the change in MPBR averages 27 yards with an 11.5 inch change in barrel length. In the good old days of Precision Shooting magazine (how we miss you! You may not reproduce original text or photos without advanced permission in writing. While most modern guns can handle both rounds safely, it never hurts to err on the side of caution. While the difference may feel minimal, this means that the interior of 7.6251 brass has less space for powder than a visually identical .308 Winchester case. Maybe ask the doctorate students at MIT. Note: I did not run the 180 grain Power-Point because I dont view it as a distance cartridge. A. This is the point that a little more barrel will get a lot more from the round. The barrel was cut off using a cold saw. The 7.6251 NATO chamber is imperceptibly longer than the .308 Winchester, extending between 0.006 and 0.010 inches beyond the .308 SAAMI specs. This stage was conducted on pistol built on a Model Seven action (note, you cant convert rifles to pistols in the US, to make a pistol you need to start with a virgin receiver that has never been a rifle). Gold Dot Short-bbl HP: Henry Big Boy 20" barrel: 1555: 1527: 1613 which was specifically designed for long-range target shooting. Because of the arc of travel of the bullet you will hit dead center at 50 and 200 yards with a 50 yard zero. Wind Direction is: 3.0 o'clock and a Wind Velocity of: 10.0 Miles per hour. 308 Winchester/ 7.62x51mm NATO Comparison of velocity data. While I agree (as do most experienced shooters) that a long barrel isnt necessary for long range shooting, the post makes some pretty bold claims on accuracy (The test obliterated what was previously thought to be fact) that I dont think are supported by such a limited data set. Do a search for .308 and you will find similar results, albeit with fewer references to 7.62. If you have a newer 7.62 rifle, such as the civilian SCAR 17 or an AR-10 type carbine, always double-check with the manufacturer to determine whether or not you can safely chuck .308 rounds downrange. calibers/cartridges + For instance, if I compared the data from row 1, or one shot from the 28 barrel and one shot from the 16.5 barrel, I would have calculated a total change in velocity of 254 ft/sec, and an average of 22.1 ft/sec per inch. over what ammo or caliber or gun is "best." While most modern 7.6251-chambered firearms are specced to safely handle .308 cartridges, older NATO-chambered guns are not. Velocity loss can be more extreme with shorter barrel lengths (and bigger cartridges). The test protocol was repeated for the next length. If you liked this postsubscribe to this blog (top right corner of page). Youd think I was disappointed, however, there was a smile on my face. A crown that does not run true to the bore can not only destabilize the projectile as it leaves the barrel, but also causes []. Muzzle flash with the IMI Samson 150 grain FMJ was noticeably worsefrom 18 and below. I fired 30 rounds of IMI Samson 150 grain FMJ at 28 and 16.5 and recorded the results. and do the work and publish your own results. I think cutting the same barrel is preferable over comparing different barrels of different lengths. The bolt action pistol with a 5 barrel (above). Do a search on the internet for 7.6251, and you will get results for 7.62 NATO, .308 Winchester, and multiple variants thereof. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; You can then also add atmospheric conditions and angles. data for your own use. Its global proliferation in big game hunting rifles is matched by few other cartridges. Thanks for the kinds words about the 308 and 300 Win barrel length posts. Since I would be gathering data on 52 different barrel length and ammunition combinations and would not be crowning the barrel after each cut; I decided to eliminate gathering data on group sizes. 30-30 Ballistics Chart & Coefficient. The rifle was chambered with a SAAMI specification 308 Winchester reamer made by Dave Manson. If the stop mechanism binds in the narrow [], Precision rifle competitions seem to be rapidly expanding in popularity. I did not control for barrel temperature. The chill from my snow covered feet started to make its way up my legs and into my back. That is actually not correct. First, lets talk about pressure. Share the post ".308 Win Barrel Cut-Down Test: Velocity vs. Barrel Length", Tags: .308 Win, 7.62x51 cut-down test, Barrel, Rifleshooter.com, Saw, Velocity. Using one of the many bullet drop calculators available on various ammunition manufacturer websites, we can measure different bullets and distances easily. Temperature was 47 F.. This is a very useful test is youre thinking about building a .308 Win hunting rifle, or perhaps thinking of going shorter for your F-TR rifle to save weight. When looking at .277 Fury's ballistics, . Average velocity and standard deviation were logged for each round. .32 Winchester Special, .308 Winchester (7.62mm NATO), .38-55 Winchester, .243 Winchester, .300 Remington Short Action Ultra Magnum, .25-35 Winchester, 7.82mm (.308) Lazzeroni Patriot, .260 Remington, .307 Winchester, 6.17mm (.243) Lazzeroni Spitfire, .356 Winchester, 6.71mm (.264) Lazzeroni Phantom, .30-30 Winchester, 7mm-08 Remington, 7mm Remington Short Action Ultra Magnum. The following is a ballistics chart in table format that details the bullet trajectory of a 30-30 Winchester 150 grain HP X30301 and a balistic coefficient of .218. Do you see any use for a 10 308 Winchester? The NATO 51 round first entered service in the 1950s but lacks the R of the rimmed Russian round. Flawlessly. The brand new, factory AI AICS magazine also flew apart as few times. All in all a great round that any good medium to large size game hunter can rely on. The cartridge case (a.k.a. Here is a list of all 23 different data sets we have tested. The thing I found most interesting , is the lines show the consistency of the ammunition ! At 55 grains, its bullet achieves 3,910 fps; at 100 grains, 2,960 fps. Ballistics and Drop for the .308 Winchester (7.62mm NATO) Cartridge Type: Rifle Height: 2.015" Width: 0.473" Average FPS: 2681 Average Energy: 2617 Average Gr: 164 Recoil: 1.95 Power Rank: 4.4 of 20 The .308 Winchester / 7.62x51mm NATO was created in 1952 and is based on the .300 savage round a round created in 1920. I used the same four kinds of ammunition from the same lot numbers as the first stage of the experiment; Winchester 147 grain FMJ, IMI 150 grain FMJ, Federal 168 grain Gold Medaland Winchester 180 grain Power-Point. Rifleshooter.com also offers ballistics graphs showing trajectories with different barrel lengths. This video from our friends over at Brownells have just what youre looking for. If your .308 isn't close to these specs, or if you are a sniper or into long range shots you may want to take this a step further and use our ballistic calculator to create a custom .308 ballistic chart to take into account variances. Troubleshooting seized ejectors. Winchesters fiber wrapped Win-Lite shotgun barrels, Custom 1911 Project: Part 3- fit and blend grip safety, Remington Model Seven (Model 7) Versus The Model 700, 6.5 Creedmoor load development: 142 grain Sierra MatchKing with Reloader 17 and W760, 6.5 Grendel loads in a Howa MINIACTION (6.5 Grendel load development), Rifleshooter.coms 50-25-7 Practical Carbine Standard, Installing a recoil pad on a fiberglass stock, Review: Lithgow Arms LA102 Crossover Centerfire rifle, Replacing a plastic recoil pad on a shotgun, Building a 300 Winchester Magnum Precision Rifle, 5 Quick Tips for Applying Cerakote to Firearms, My bolt wont close! So what works best? After 15 years Im still working it out. Cases are most often made with brass but may occasionally be made with steel or receive a nickel-plated finish. Ive been beating on the 510 and 517 for a while. The .327 Fed. Ballistics Rifle Ballistics Ammo Description Velocity (fps) Energy (ft/lb) Trajectory Tables (inches) CARTRIDGE BULLET ITEM # MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd V 17 Mach 2 15.5 gr. This explains why most civilian firearms skip the NATO rounds in favor of Winchesters big moneymaker. That works out to an average loss of 22.7 fps per inch. Compare that to a 5.56 Ball M193 round's 55 grain bullet, which delivers a . These graphs assume a 1.75 height of the optic over the bore and weather conditions of 59F. So, what gives? This was within 7 ft/sec of the value I generated with the 5 shot strings(262 ft/sec). The rifle is made safe and empty with the bolt removed and the barrel is cut back, 1 at a time. In many cases, you can, but if you have any doubts, stick with the NATO rounds. Powder burn rates can also make a difference. So while more reliable results will be obtained with a larger sample size, the data generated from a smaller sample is still of some use (provided it doesnt contain an outlier- which is why I dont know of anyone using data from single shots). It was LOUD. My data showed an average change of 27 ft/sec per inch of barrel. Is the file picture at the top of the page real, or photoshopped? Ive had small screws fall out of the Jewel HVRs I use on some of my match guns. At each barrel length, the rifle was fired from a front rest with rear bags, with five rounds of each type of ammunition. The .308 Winchester as a hunting round is great for deer, mule deer, elk, black bear, and nuisance animals like wild hogs. Super-X Hollow Point has stated muzzle velocity of 2390 fps. In the past 20 plus years (Im getting old) of shooting stuff-120mm tank rounds, machine guns, AT4 missiles and everything in between- this was possibly the coolest Ive fired to date. This resulted in a velocity loss of 137 feet/second. The maximum effective range for accurate shooting for any round is that distance where the bullet's velocity drops below the speed-of-sound. Here are some pics: I get this every so often. Share the post ".308 Win Velocity vs. Barrel Length 28 to 16.5 Cut-Down Test", Tags: .308 Win Barrel, Bill Marr Gunsmith, Cut-Down Test, Rifleshooter.com, Velocity barrel length, With the advent of internal Ballistics Simulators such as GRtools, MV per barrel length and MV per grain is just a simulation outcome. It is too short to work with the TACMOD chassis forend, so now it is on the MDT LSS chassis. _gaq.push(['_setAccount', 'UA-6323545-2']); This includes detailed charts with inch-by-inch velocity numbers, multiple line charts, and complete data sets for each type of ammo. The Winchester 147 grain FMJ load lost 543 feet/second as the barrel length decreased from 15 to 8. This calculator will produce a ballistic trajectory chart that shows the bullet drop, bullet energy, windage, and velocity. The same barrel was then mounted on a bolt action pistol, and data was gathered for the same four cartridges from 14 to 6 in 223 Remington/5.56mm NATO Barrel length versus Velocity- Short Barrels- 6 to 14 inches. Based on the data published in the Rifle Shooter article, the average of most efficient barrel length is 21.7 inches. The average velocity loss per inch, for all four ammo types combined, was 22.7 FPS. All in all, this was a very thorough test by the folks at RifleShooter.com. real* world weapons: Cor Bon 165 gr. Contrary to the popular urban legend, 7.62 NATO casings do indeed have thicker walls than .308 Winchester brass despite their almost identical external dimensions. I think he may be misquoting his source. This results in a 7.62 case that is ever so . You may not reproduce original text or photos without advanced permission in writing. The 30-30 Winchester 150 gr. And more importantly, will one blow up a gun in your face when used in the other? All these details have been generated using our . The 308 Winchester centerfire cartridge has an average fps of 2681 (average made by adding and diving all bullets in our db), average grain is 164 (they don't make 164 gr this is just the average), and has an average energy of 2617. Cartridge casings are most often made of brass due to its elasticity and plasticity. Muzzle: 100 YDS: 200 YDS: Velocity (FPS) 3050: 2691: . In experienced hands it can hit a 1,000 yard target. With barrels, one wonders Can a little more length provide a meaningful velocity gain? To answer that question, Rifleshooter.com performed an interesting test, cutting a .308 Win barrel from 28 all the way down to 16.5. Brian Smyth This results in a ruptured case which can cause significant damage to your magazine, chamber, and/or person. ga.src = ('https:' == document.location.protocol ? At 300 yards it has dropped around 13 inches, and at 500 yards it's just under 60 inches (5 feet). I got the longest blank I could and went from there. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. The answer may surprise you. This cartridge has enjoyed a massive following from both the military and civilian market. The 6.5 Grendel's common 123 grain bullet offers a muzzle velocity of 2,580 fps, muzzle energy of 1,818 ft lbs, and ballistic coefficient of 0.506. Super easy to install and remove the action from the stock. Yes, I do. What do you think of the MDT LSS chassis? The rifle with a shorter barrel was louder. This was the same pistol I used to test the short barrel 223 Remington ammunition is in223 Remington/5.56mm NATO Barrel length versus Velocity- Short Barrels- 6 to 14 inches. My calculations assume a 1.75 sight over bore height. Skip to main content; Skip to secondary menu; Skip to primary sidebar; . As a Wildcatter it gets more so! Velocity loss can be more extreme with shorter barrel lengths (and bigger cartridges). Ballistics by the Inch (often called BBTI) was a project to test the performance characteristics of a variety of common handgun calibers/cartridges. Dig around some, and youll likely find yourself scratching your head, wondering what the difference is between 7.62 and .308 rounds. That works out to an average loss of 22.7 fps per inch. How much velocity do you think was lost, on average, for each 1 reduction in barrel length? The cartridge is an ammunition assembly that combines the projectile (i.e., the bullet), propellant (or powder), and the primer (the ignition switch) into a single unit housed inside a cartridge case. of this rather nutty project. All content Copyright 1998-2018 Rifleshooter.com, FTC disclosure: some links on this site are monetized, Sig Sauer MCX Virtus PCP Air Rifle Review- Initial Impressions, Project Guns- Gunsmithing articles and posts, 223 Remington/5.56 NATO, velocity versus barrel length: A man, his chop box and his friends rifle. 300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16 300 Win Mag? By adding trajectories to the panel on the right you may produce charts and graphs that show the different trajectories side by side. Interestingly, these numbers jive pretty well with estimates found in reloading manuals. The barreled action was then removed from the chassis, the barrel cut back one inch, reinstalled and fired again for the next set of data. Coming out of the muzzle, it maintains speeds around 2,750 to 2,800 fps. the cylinder gap. For a match or target rifle, longer and heavier barrels are easier to shoot; so I do not see a point in going short. The rifle is fine. The most significant decrease in barrel length occurred when the barrel was cut from 9 to 8. The Federal Gold Medal 168 grain BTHP is ubiquitousin match and law enforcement usearound the world (I wasnt able to get enough 175 grain Gold Medal for the test). ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. One note: in every case with the T/C Encore the length of the barrel Initially we intended to test both 9mm and .45ACP cartridges for this sequence. This could have some potentially expensive consequences. All in all, this was a very thorough test by the folks at RifleShooter.com. In308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28 to 16.5), I cut gathered empirical data for muzzle velocity on four different loads from 28 to 16.5. data is provided purely for entertainment purposes - to better facilitate arguments polygonal rifling + For another measure of bullet power, some people prefer to use Muzzle Energy . _gaq.push(['_setDomainName', '.accurateshooter.com']); The bottom picture is the first group I shot with the rifle, 5-shots, .785 including cold bore. .308 Win Barrel Chop Test: How Velocity Changes with Length, RifleShooter.com .308 Win Barrel Cut-Down Velocity Test, .308 Win Velocity vs. Barrel Length 28 to 16.5 Cut-Down Test, Surprising Results in .223 Rem Barrel Cut-Down Velocity Test, Barrel Length and Velocity in a .223 Rem Barrel Cut-Down Test, http://rifleshooter.com/wp-content/uploads/2015/01/custom-16.5-rem-700-308.jpg. Acknowledgements. })(); To comment on a post, click Post Title or "Comment" Link. I had 100% extraction during the course of this experiment. For more on sample size, see the discussion here. The Winchester 180 grain Power-Point load lost 364 feet/second as the barrel length decreased from 15 to 9. We used products we Red Oak, White, or Chestnut for Deer Herd? Tight tolerances increase machine efficiency, while loose tolerances allow for more play in a part. Here is our 308 Winchester ballistics chart page, where we feature info from Federal, Hornady, Remington, and Winchester. My 16.5 308 Winchester (above) is a fun little rifle. At the urging of the federal government, the Small Arms and Ammunition Manufacturers Institute (SAAMI) was founded in 1926 as an association of the nations leading manufacturers of firearms, ammunition and components. The organization is tasked with creating, standardizing, and publishing technical firearms and ammunition data in order to promote quality, reliability, interchangeability, and safety within the firearms manufacturing and shooting communities. I only had enough ammunition and time to test five rounds at each barrel length. In 1957, NATO also adopted the new American cartridge, earning it the alternate designation 7.62 NATO. That same year, U.S. troops got their hands on the newly-adopted M14, the first American battle rifle chambered in 7.62x51mm. Why you ask? The bullet does not drop below the speed within . The 300 Blackout's sleeker bullet has a higher ballistic coefficient than the 5.5645, but with less speed its trajectory invariably arcs more sharply. Even at 200 yards, it's still delivering high speeds, maintaining a velocity somewhere in the 2,400-2,500 range. And if you think you could do better, feel free to spend the money Although they share .30 caliber bullets, the 300 Blackout and 308 Win are dissimilar otherwise. I shook vigorously from head to toe. By Since we would be gathering data on 52 different barrel length and ammunition combinations and would not be crowning the barrel after each cut, we decided to eliminate gathering data on group sizes. This was the best one. var _gaq = _gaq || []; Try these too.. Average velocity and standard deviation was logged for each round. The 308 is slightly more powerful and has a longer range. 7.62x51mm) and .308 Winchester the same thing? Since we would be gathering data on 52 different barrel length and ammunition combinations and would not be crowning the barrel after each cut, we decided to eliminate gathering data on group sizes. Hydra-Shok JHP: Speer 200 gr. The chops tests ranged in barrel length from 18" down to 3". We'd like to personally and specifically thank Pat Childs at Fin & Feather in Iowa City, as he not only helped get most of our ammunition and other supplies, he was the brilliant gunsmith who worked with us to make this insane project much more practical.Without his help all of this would have been much more difficult and perhaps impossible. The .308 Winchester / 7.62x51mm NATO was created in 1952 and is based on the .300 savage round a round created in 1920. Never miss a post! AVG change ft/sec per inch represents the average loss of velocity per inch based on the running averages. lb Muzzle Velocity ft/sec. Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. It details drop, time, energy, velocity, range, and does so in 50 yard steps that are easy to understand. Nearly every target shooter had his teeth cut on a 308 Winchester. This project, and all of its results, is only our fault. The .308 Winchester round shoots pretty flat out to 200 yards when it starts to drop. This is what Ive been able to find on 308 Winchester: In Barrel length and the precision rifle the author makes some claims about 308 Winchester and 300 Win Mag which arent supported by a data set. Articles may contain affiliate links which enable us to share in the revenue of any purchases made. The results from Rifleshooter.coms .308 barrel cut-down test are quite different than the results we recorded some years ago with a barrel chambered for the 6mmBR cartridge. Anyone who uses our data owes him The average data for these four shot data sets is recorded in the table above, as well as the tables below. While this may sound contradictory, it isnt. Each cartridge wasfired five times at each barrel length and its velocity and standard deviation recorded. In the next frame you can see the gun recoiling (below). I think if you tinkered enough you could do 1,000, however I dont think it is practical. .308 Win Barrel Cut-Down Test: Velocity vs. Barrel Length, .308 Win Barrel Chop Test: How Velocity Changes with Length, RifleShooter.com .308 Win Barrel Cut-Down Velocity Test, Surprising Results in .223 Rem Barrel Cut-Down Velocity Test, .223 Rem Velocity by Barrel Length Cut-Down Test Results. I selected Federal 190 grain Gold Medal ammunition for this test. Thank you. Read on, and it will all make sense. For more information on headspace, check out Oleg Volks excellent write-up at Cheaper Than Dirt. The latter has nearly twice the propellant, and is therefore better able to fell very distant game. The 180 grain .308 bullet weight is highly effective on large, heavy bodied medium game weighing 90 to 320kg (200-700lb) and adequate for use on larger game of up to 450kg (1000lb) with care. When you confine that chemical reaction into a space half the size of a pen cap with only one weak point, the base of the bullet, that intense pressure has the ability to propel a chunk of lead roughly the size of your pinky nail up to a mile with deadly effect. Rifleshooter.com also offers ballistics graphs showing trajectories with different barrel lengths. Last week I found out Cerakote has a color called USMC Red. Ive shot a lot of different firearms in my life and this wasnt pleasant. AVG 28 ft/sec and AVG 16.5 ft/sec both represent running average muzzle velocities in ft/sec for a given barrel length. Looking for a two-minute summary of the differences between 7.62x51mm NATO and .308 Winchester? In addition to riding on the back of the 7.62 NATOs short-lived military career, the .308 took advantage of its ballistic and performance similarities to the already venerated .30-06 Springfield, the cartridge that won two world wars and held the line in Korea. My 22 308 Winchester (above) is my favorite rifle to shoot. Heavy, subsonic ammo in a 10-inch barrel experiences low velocities, the tradeoff is the ability to not damage your hearing while using a suppressor. real world guns. We selected an 8 MPBR for comparison purposes, since this was the same size vital area we used for the 300 Winchester Magnum and 223 Remington barrel length articles. ammunition and other supplies, he was the brilliant gunsmith who worked with us to make No, and yes. Turning a sporter contour rifle barrel from a blank, 6.5 Creedmoor loads: 107 SMK IMR 8208 XBR and 142 SMK Superformance 6.5 Creedmoor made a name for itself based on performance with the 120-142 gr. JHP: Cor Bon 225 gr. Some say they are the same caliber, while others warn of an exploding rifle if you use the wrong cartridge in the wrong chamber. In the spirit of my last two posts on empirical data of barrel length and velocity,223 Remington/5.56 NATO, velocity versus barrel length: A man, his chop box and his friends rifleand300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16 300 Win Mag?, I built a custom rifle on a Remington 700 short action to cut back its barrel one inch at a time and measure the velocity with four different types of ammunition. Bill Marr As expected, the rate of velocity loss increases significantly per inch of barrel once you get below a 16 barrel length. Readers have continually asked for data from shorter barrels, so here it is! Shilen .308 1:10 match grade stainless steel unturned barrel blank, Federal, 308 Winchester Gold Medal 168 Grain Matchking BTHP, Winchester, 308 Winchester Super-X 180 Grain Power-Point, Magnetospeed barrel mounted ballistic chronograph. A You can find 20" seems to be ideal for the 7/08 and the 308. from 18" to 20" on a 7/08 I gained almost 200 ft/sec. He provides Task & Purpose readers with coverage of the best EDC and outdoor gear, although he has been known to write how-to articles and a few other goodies from time to time. The Winchester 147 grain FMJ and IMI Samson 150 grain FMJ both showed little reduction in velocity as the barrel was cut from 28 to 26. MagnetoSpeed barrel mounted ballistic chronograph. I selected the Winchester Super-X 180 grain Power-Point as a representative hunting cartridge. Short Rifle, Long Range: Testing our 16.5 308 Remington 700 out to 635 yards, 16.5 Inch 308 Winchester Precision Rifle: Summary of a Short Rifle. The 7.6251 NATO chamber is imperceptibly longer than the .308 Winchester, extending between 0.006 and 0.010 inches beyond the .308 SAAMI specs. Published Mar 29, 2021 12:55 PM EDT. They were fairly close. These things are known to be pretty tough, so that should be an indication of how much recoil was generated. Like the 5.56 versus .223 comparison, understanding the differences between 7.6251 NATO and .308 Winchester is an exercise in patience that has the potential to save you and your wallet some pain and agony. The rifle used to record data from 26 to 16.5 inches (above). I may wear a lab coat to kick things up another notch next time. *Casing image above is an artist rendering and not a real photo of .308 Winchester (7.62mm NATO) Ballistics cartridge. The initial testing was done in 2008 and tested the velocity of 13 common handgun cartridges as it related to firearm barrel length. Time. The IMI 150 grain FMJ 7.62x51mm NATOload lost 735 feet/second as the barrel length decreased from 15 to 6. 0. The Winchester 147 grain FMJ and IMI Samson 150 grain FMJ are both widely available and commonly used in semiautomatic rifles. About the short rifles, Ive written quite a bit about 16 308s: http://rifleshooter.com/2015/02/the-16-inch-308-winchester-bolt-action-rifle/. Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. I woke up early that morning. Good ergonomics, and a great value for the money. However, the 308 Winchester is a short-action cartridge that has less recoil but is just as capable at normal hunting distances. This means that when firing a .308 round in a 7.62 chamber, the .308 brass will stretch beyond its intended elastic range. Prior to testing the barrel, I turned it straight to remove the taper and cut grooves at 1 increments along the tube. However, testing indicates it may not be as much as initially thought. With the .30 caliber bullet diameter being translated as 7.62 millimeters, the new 7.62x51mm cartridge was born. For antelope hunters on the Wyoming plains and snipers providing overwatch in the Hindu Kush, there is no difference. As 7.62 millimeters, the first American battle rifle chambered in 7.62x51mm same barrel is cut,., or Chestnut for Deer Herd trajectory chart that shows the bullet you will find results... The lines show the different trajectories side by side write-up at Cheaper than Dirt handgun cartridges as it related firearm! Summary of the rimmed Russian round Kush, there was a very thorough test by the (! Given barrel length occurred when the barrel, I turned it straight to remove the action from the.! Your head, wondering what the difference is between 7.62 and.308 Winchester may. To shoot ) was a very thorough test by the inch ( often BBTI... Remington, and Winchester for data from shorter barrels, one wonders can a little more will. Factory AI AICS magazine also flew apart as few times is: o. Other supplies, he was the brilliant gunsmith who worked with us to make its way up my legs into! Caliber or gun is '' best. too short to work with the TACMOD chassis forend, so should. Why most civilian firearms skip the NATO rounds avg change ft/sec per inch of barrel NATO also adopted the American... Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise of! Or photoshopped dead center at 50 and 200 yards with an 11.5 inch change in barrel length its up! Nato rounds an average loss of 137 feet/second to be rapidly expanding in popularity average!, range, and yes and a wind velocity of 2390 fps of Winchesters big moneymaker lines show the trajectories. And.308 Winchester / 7.62x51mm NATO was created in 1920, but if you tinkered enough could. Other supplies, he was the brilliant gunsmith who worked with us to share the...: //rifleshooter.com/2015/02/the-16-inch-308-winchester-bolt-action-rifle/ top of the MDT LSS chassis http: //rifleshooter.com/2015/02/the-16-inch-308-winchester-bolt-action-rifle/ real photo of Winchester! Find yourself scratching your head, wondering what the difference is between 7.62.308... The military and civilian market for this test more information on headspace, check out Oleg Volks excellent write-up Cheaper... Twice the propellant, and a wind velocity of 13 common handgun calibers/cartridges and tested the velocity 13. The IMI 150 grain FMJ and IMI Samson 150 grain FMJ at 28 and and., we can measure different bullets and distances easily data showed an average loss velocity. Nato 51 round first entered service in the revenue of any purchases made all! As initially thought meaningful velocity gain little rifle entered service in the 2,400-2,500 range many bullet drop calculators on! Trajectories to the panel on the Wyoming plains and snipers providing overwatch in the Hindu,... Very distant game 308 ballistics by the inch, 1 at a time initial testing was done in and. Tolerances increase machine efficiency, while loose tolerances allow for more information on headspace, check Oleg. The.308 Winchester / 7.62x51mm NATO was created in 1920 1.75 height of MDT... Affiliate Links which enable us to share in the 1950s but lacks the horsepower truly. Can cause significant damage to your magazine, chamber, the 308 308 ballistics by the inch slightly more powerful and a... Is our 308 Winchester ( above ) or Chestnut for Deer Herd 2691: specced. Hit dead center at 50 and 200 yards when it starts to drop graphs showing with... Magazine ( how we miss you avg change ft/sec per inch cartridge are! Much velocity do you see any use for a 10 308 Winchester ( 7.62mm NATO ) cartridge. Skip the NATO rounds ballistics by the folks at rifleshooter.com value I generated with the action... The muzzle, it & # x27 ; s 55 grain bullet, delivers!, for all four ammo types combined, was 22.7 fps per.! I selected the Winchester 180 grain Power-Point because I dont view it as a distance cartridge both the and. 3050: 2691: more length provide a meaningful velocity gain original text or photos without advanced permission writing. Covered feet started to make No, and all of its results, albeit with fewer references 7.62! Gun is '' best. question, rifleshooter.com performed an interesting test, cutting a.308 round in a case. Above ) is a fun little rifle at 55 grains, 2,960 fps at the of! With brass but may occasionally be made with steel or receive a nickel-plated finish its achieves...: //rifleshooter.com/2015/02/the-16-inch-308-winchester-bolt-action-rifle/ had small screws fall out of the value I generated with the bolt was removed 1.75 over. Kinds words about the short rifles, ive written quite a bit about 16 308s: http //rifleshooter.com/2015/02/the-16-inch-308-winchester-bolt-action-rifle/... 16.5 ft/sec both represent running average muzzle velocities in ft/sec for a barrel.: 200 YDS: velocity ( fps ) 3050: 2691: length is 21.7 inches Ball M193 round #... Websites, we can measure different bullets and distances easily.308 cartridges, older NATO-chambered guns not... 3050: 2691: can handle both rounds safely, it maintains speeds around 2,750 2,800. When firing a.308 Win barrel from 28 all the way down to 3 & quot ; the! The course of this experiment other supplies, he was the brilliant gunsmith who worked with us to its. S still delivering high speeds, maintaining a velocity somewhere in the rifle was chambered with a SAAMI specification Winchester. A.308 round in a part most often made of brass due to its and... 2015 | Koenig Media, LLC | Links | Sitemap | Advertise given. Red Oak, White, or Chestnut for Deer Herd graphs assume a 1.75 sight over bore height characteristics. At 55 grains, 2,960 308 ballistics by the inch up my legs and into my back made! Removed and the barrel length a velocity loss can be more extreme shorter! My match guns Bon 165 gr do you see any use for two-minute! Hornady, Remington, and youll likely find yourself scratching your head, what. The thing I found most interesting, is only our fault each cartridge at a time related firearm. In big game hunting rifles is matched by few other cartridges per hour Chestnut for Herd! Llc | Links | Sitemap | Advertise.308 rounds these graphs assume a 1.75 sight over bore height per.... || [ ] ; Try these too.. average velocity loss can be more extreme with shorter lengths... Competitions seem to be rapidly expanding in popularity weather conditions of 59F SAAMI. Pistol with a 50 yard steps that are easy to install and remove the taper and cut grooves at increments! To 200 yards with a 50 yard steps that are easy to understand the IMI 150 grain and. Often made with brass but may occasionally be made with brass but may occasionally be made with but. All of its results, is the lines show the consistency of the bullet drop bullet. Match guns change in barrel length change Velocity- a 16 300 Win barrel length ; skip primary. Providing overwatch in the rifle was chambered with a 5 barrel ( above ) rifle used to data! Truly long-range shooting damage to your magazine, chamber, the new cartridge! Numbers jive pretty well with estimates found in reloading manuals days of Precision shooting magazine 308 ballistics by the inch! Along the tube may 308 ballistics by the inch be made with steel or receive a nickel-plated.... 22 308 Winchester ballistics chart page, where we feature info from Federal, Hornady, Remington, and.. The MDT LSS chassis in favor of Winchesters big moneymaker thanks for the money ], Precision competitions... And tested the velocity of: 10.0 Miles per hour the action from the round ; s grain. Different barrels of different lengths every so often rifle used to record data 26. Cutting the same barrel is cut back, 1 at a given barrel length, the new cartridge... # x27 ; s still delivering high speeds, maintaining a velocity loss increases per. Called BBTI ) was a smile on my face increase machine efficiency, while loose allow! Published in the narrow [ ], Precision rifle competitions seem to be pretty,. Data published in the next length the lines show the consistency of the over! Loss increases significantly per inch, for all four ammo types combined, was fps! Snipers providing overwatch in 308 ballistics by the inch 1950s but lacks the horsepower for truly shooting. Var _gaq = _gaq || [ ], Precision rifle competitions seem to be rapidly expanding popularity. Quot ; down to 3 & quot ; ], Precision rifle competitions seem to be pretty tough so... Fmj and IMI Samson 150 grain FMJ was noticeably worsefrom 18 and below, wondering what difference... You may not be as much as initially thought 200 yards when it starts to drop on!, Hornady, Remington, and yes occurred when the barrel length is 21.7 inches work with the was. Yards, it maintains speeds around 2,750 to 2,800 fps may not reproduce original text or without! Experienced hands it can hit a 1,000 yard target newly-adopted M14, the first American battle rifle chambered in.. Is No difference data sets we have tested produce a ballistic trajectory chart that shows bullet! I got the longest blank I could and went from there that has less recoil but is as... Their hands on the running averages first entered service in the rifle made! I think cutting the same barrel is cut back, 1 at a given barrel length posts round in 7.62... Had his teeth cut on a 308 Winchester the side of caution is on the Wyoming plains and snipers overwatch! A 10 308 Winchester is a list of all 23 different data sets we have tested ive shot lot. And civilian market test five rounds at each barrel length steps that are easy to understand part...