30-30 Ballistics Chart & Coefficient. However, the 308 Winchester is a short-action cartridge that has less recoil but is just as capable at normal hunting distances. Even if I had crowned the barrel at a given length, I think any accuracy assumptions wouldnt be particularly leading when you factor in changes in barrel harmonics, barrel construction and the shooters ability. the cylinder gap. As one of the most commonly available rifle calibers in North America, the .308 Winchesters rise to fame is simultaneously impressive and unsurprising. cylinder gap +
This project, and all of its results, is only our fault. To learn more about how I made this modification, see the Project Guns section of this site. 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
With the .30 caliber bullet diameter being translated as 7.62 millimeters, the new 7.62x51mm cartridge was born. Flawlessly. 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 devil is in the details with the difference between the two boiling down to three key factors: pressure capacity, case sizing, and chamber dimensions. Try these too.. The test protocol was repeated for the next length. A. site designed and maintained by Coeurbois Graphic Design. If youre shopping the civilian market for a new rifle and need to narrow it down to one or the other, go with the .308 Winchester option. At 1000 yards a .308 Winchester will have dropped around 400 inches (30 feet) where it has lost 55% of its velocity. The contents of Rifleshooter.com are produced for informational purposes only and should be performed by competent gunsmiths only. 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. Of course, these ranges depend heavily on the ammunition and the shooter. For antelope hunters on the Wyoming plains and snipers providing overwatch in the Hindu Kush, there is no difference. mostly) paid for everything ourselves, and we did not receive any kind of sponsorship
Registration on or use of this site constitutes acceptance of our Terms of Service. Powder burn rates can also make a difference. These pressure differences are almost negligible, yet they can have a significant impact in the real world for anyone who owns a 7.62-chambered firearm or who likes to reload their own ammo. As a Wildcatter it gets more so! 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. ATTENTION: Effective Sept 1, 2020, the BBTI Project is in "Archive Status." Tolerance is the acceptable degree of variance a manufacturer will allow for a product to meet quality standards. My calculations assume a 1.75 sight over bore height. })(); To comment on a post, click Post Title or "Comment" Link. real world guns. Interestingly, these numbers jive pretty well with estimates found in reloading manuals. (function() {
He,he. How to Sight in a Scope - Step by Step Guide. Anyone who uses our data owes him
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. 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. Troubleshooting seized ejectors. We also did do a sequence of tests out of the full length of the barrel blanks, just out of curiosity. I think if you tinkered enough you could do 1,000, however I dont think it is practical. In fact the .308 Winchester 165gr bullet is traveling faster at 1000 yards than the .223 or 7.62x39mm at just 500 yds. polygonal rifling +
I selected Federal 190 grain Gold Medal ammunition for this test. The NATO 51 round first entered service in the 1950s but lacks the R of the rimmed Russian round. It includes gauges in .001 increments. Here is our 308 Winchester ballistics chart page, where we feature info from Federal, Hornady, Remington, and Winchester. Besides the time, I havent noticed any burrs (real or imagined) left by the saw affecting the velocity of the bullets. Since the 308 Winchesteris a popular hunting cartridge, I worked out the maximum point-blank range (MPBR, sometimes referred to as maximum point blank zero) for each barrel length with the given load assuming a 8 vital area. If you take a look at the series posts (below) on my 16.5 308, youll see it performs quite well (though I enjoy shooting my 22 gun more). 308 Winchester: BBA JHP: 175: 2832: 2700: 308 Winchester The Winchester 180 grain Power-Point load lost 364 feet/second as the barrel length decreased from 15 to 9. It's fine to 600-800 yards and is fine at that range out of an 18" barrel. Stir crazy, I couldnt wait to get outside. The stats are generated using a 150gr FMJ Boat-Tail with a ballistic coefficient of .409 being fired at a velocity of 2820 from muzzle point blank, this also takes into account the standard 1.5" scope height, and a gun that has been sighted in at 100 yards. Brian Smyth While U.S. military snipers and dedicated marksmen use a variety of different calibers, it appears the 7.6251 is here to stay for the foreseeable future. | I only had enough ammunition and time to test five rounds at each barrel length. Since the barrel was an unturned blank and did not have a taper, cuts were square. With a barrel reduction from 28 to 16.5, the average speed loss of the four types of .308 ammo was 261 fps total. 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. 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. Re: 308 18" barrel Velocity 168 GMM is accurate but does not have the best ballistics available for extended range. With tunning accuracy is 99.7%. This chart shows velocity changes for all four ammo varieties: Summary of Findings: Super easy to install and remove the action from the stock. data is provided purely for entertainment purposes - to better facilitate arguments
numbers. Never miss a post! When cutting a 308 Winchester barrel from 26 to 20, he claims a gunsmith found that a 20-inch barrel provides for a complete propellant burn and no velocity loss when using Federal Match 168-grain BTHP. performance comparable to the proven .30-06 but with a shorter overall length, the Army experimented with a variant of the .300 Savage that is designated the T65, a good two years before the 7.6251 saw the Pentagons official green light, NATO also adopted the new American cartridge, the newly-adopted M14, the first American battle rifle chambered in 7.62x51mm, check out this article by Bison Ballistics, For more information on headspace, check out Oleg Volks excellent write-up at Cheaper Than Dirt, an association of the nations leading manufacturers of firearms, ammunition and components, measured in PSI, fractions of an inch, and millimeters, the nominal difference is around 12,000 PSI, although in practice, that number is closer to 4,000, Elasticity describes a materials ability to expand and contract, while plasticity refers to a materials ability to be stretched into a new shape without breaking (under reasonable amounts of stress), handle the inevitably looser tolerances of ammunition manufactured by different NATO members, 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, can cause significant damage to your magazine, chamber, and/or person, While most modern 7.6251-chambered firearms are specced to safely handle .308 cartridges, The U.S. Army lists the 7.62s effective range (and thus, the .308s range) as topping out at 800 meters, but in the spirit of interservice rivalry, the Marine Corps top brass raised the Army two and cites 1,000 meters as the rounds max effective range. At 300 yards it has dropped around 13 inches, and at 500 yards it's just under 60 inches (5 feet). The 308 is slightly more powerful and has a longer range. was measured from the end of the barrel back to the breech face. No, personally, it seems like a silly idea to me. Mag. The experimental cartridge fluctuated in case size before settling in at 51 millimeters long. 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. The most significant decrease in barrel length occurred when the barrel was cut from 8 to 7. This means that when firing a .308 round in a 7.62 chamber, the .308 brass will stretch beyond its intended elastic range. Some say they are the same caliber, while others warn of an exploding rifle if you use the wrong cartridge in the wrong chamber. We may earn revenue from the products available on this page and participate in affiliate programs. For example in this chart I lowered the velocity to . Drop (Inch) / 0-3.6: Our next 308 Win ballistic chart shows 130 grain Varmint & Predator rounds. Get the latest in military news, entertainment and gear in your inbox daily. Yes, I did for the 223 post. For more information on headspace, check out Oleg Volks excellent write-up at Cheaper Than Dirt. were either familiar with, or because they were what was available, and mentioning
With a barrel reduction from 28 to 16.5, the average speed loss of the four types of .308 ammo was 261 fps total. 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. Click
Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. Despite winning two world wars in partnership with the M1903 Springfield and the M1 Garand, the long action .30-06 Springfield fell out of favor with the U.S. Army following World War II. The small sample size is always an issue. Trajectory for Custom .308 165 TGK #4667 AMMO at 2680 Feet per Second. The U.S. Army lists the 7.62s effective range (and thus, the .308s range) as topping out at 800 meters, but in the spirit of interservice rivalry, the Marine Corps top brass raised the Army two and cites 1,000 meters as the rounds max effective range. For hunting and tactical applications, I see a real benefit to the shorter barrels. 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. 7.62 NATO chambers are designed to handle slightly lower pressure rounds with thicker case walls and a longer headspace. Enter your email address to subscribe and receive notifications of new posts by email. So what works best? 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). There are some newer bullet designs that have become popular as of late that effectively extend the life and range of the 7.62x51mm NATO/308 Winchester even further. Cartridge casings are most often made of brass due to its elasticity and plasticity. The new(ish) .300 Blackout bears a similar (albeit rare) designation of 7.6235, and the standard Russian sniper round is the 7.62x54R. In the coming weeks Ill be combining the data from both experiments into one post. Test Barrel Lost 22.7 FPS Per Inch (.308 Win Chambering) real* world weapons: Cor Bon 165 gr. Even at 200 yards, it's still delivering high speeds, maintaining a velocity somewhere in the 2,400-2,500 range. How much velocity do you think was lost, on average, for each 1 reduction in barrel length? Based on the data published in the Rifle Shooter article, the average of most efficient barrel length is 21.7 inches. Great test ! My ears were ringing louder than I could remember and my nose ran in the cold air. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. Why you ask? If you think that you discover an error (perhaps a typo) in the data, just drop us a
This was an average decrease of 77.6 feet/second per inch of barrel length. Good ergonomics, and a great value for the money. which was specifically designed for long-range target shooting. The shot column represents the shot number in the respective string. 308 Winchester Barrel Length and Velocity: Winchester 147 grain FMJ, 7.62x51mm NATO (308 Win) Barrel Length and Velocity: IMI Samson 150 grain FMJ, 308 Winchester Barrel Length and Velocity: Federal 168 grain Gold Medal BTHP, 308 Winchester Barrel Length and Velocity: Winchester Super X 180 grain Power-Point, The truth about barrel length, muzzle velocity and accuracy, Effect of Barrel Length on the Muzzle Velocity and Reportfrom a Mosin-Nagant 7.62x54R Rifle, 308 Winchester H4895 Reduced loads, 168 SMK and 150 Pro-Hunter, Installing an External Bolt Stop/Release on a Remington 700, Building a Custom Precision Rifle: Deviant 6.547 Lapua, Chambering a rifle for an Ackley Improved Cartridge, Accuracy International AICS-AX 2.0 Chassis System Review: Initial Thoughts, 308 Winchester load development: Sierra .308 195 gr. Initial testing was done on Remington 700 action in a rifle. This bullet at 500 yards still has speed and stopping power with 1192 square lbs of energy. What makes the .308 such a good round? The brand new, factory AI AICS magazine also flew apart as few times.
The testers observed: "The Berger Reloading manual says for the 308 Winchester, 'muzzle velocity will increase (or decrease) by approximately 20 fps per inch from a standard 24 barrel'." How the Test Was Done The testers described their procedure as follows: "Ballistic data was gathered using a Magnetospeed barrel mounted ballistic chronograph. Velocity Boundaries (Feet per Second) of: 1740 1460 1460 1460. It seems like the 7.62x39mm Russian performance is optimum at a 16 barrel length. pistols are measured, but revolvers are measured as the length of the barrel in front of
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. This was an average decrease of 81.7 feet/second per inch of barrel length. 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. I post it here, for free, so other shooters can learn from it. This resulted in a velocity loss of 118 feet/second. Yes, I do. the firearms community. Does anyone have data on bullet drop vs barrel length? 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). I think the value of this data is worth the time, effort and expense. using Hornady 168gr A-MAX Superformance Match factory ammo. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
The most significant decrease in barrel length occurred when the barrel was cut from 9 to 8. I woke up early that morning. Muzzle flash with the IMI Samson 150 grain FMJ was noticeably worsefrom 18 and below. I tried to select a cross section of cartridges that would be of interest to a wide variety of shooters. DPX: Federal 240 gr. We also have a 223 and 7 rem mag up there. ammunition and other supplies, he was the brilliant gunsmith who worked with us to make
The IMI Samson 150 grain FMJ is a 7.62x51mm NATO spec cartridge. This is a great test and I would commend people to read the 300 Win Mag test where they did the same thing. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. 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. I fired 30 rounds of IMI Samson 150 grain FMJ at 28 and 16.5 and recorded the results. them by name does not constitute an endorsement of any kind. Last week I found out Cerakote has a color called USMC Red. .357 SIG, .38 Super Auto Colt, .35 Whelen, .300 Remington Ultra Magnum, .35 Remington, .44 Smith & Wesson Special, .380 Auto (9mm Browning Short), 10mm Auto, .25 Winchester Super Short Magnum (WSSM), .303 British, 6.5x54 MS (6.5 Mannlicher-Schoenauer), .300 Remington Short Action Ultra Magnum, .218 Bee, 6.8mm Remington SPC, .25-20 Winchester. The testing had taken its toll, destroying a factory Accuracy International magazine, tearing the screw that attaches the bipod to the chassis right out by the threads, and the muzzle blast ripping open a $175benchrest bag. Youd think I was disappointed, however, there was a smile on my face. I had 100% extraction during the course of this experiment. I actually had this happen on two different mags. 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. These graphs assume a 1.75 height of the optic over the bore and weather conditions of 59F. 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. You can then also add atmospheric conditions and angles. 28 barrel ft/sec and 16.5 barrel ft/sec represents the velocity data for the specific shot number. Selecting the best barrel length for the .300 BLK can be a double-edged sword. The rifle was built with the following parts ordered fromBrownells: Brownells also provided the four types of ammunition used in this test: I did not true (blueprint) the action prior to threading and chambering the barrel. The headspace on this pistol measured 1.630 (SAAMI minimum), this was .003 less that when the barrel was installed on the rifle (1.633). Cutting the barrel from 28 to 16.5 resulted in a velocity reduction of 283 ft/sec for the Winchester 147 grain FMJ, 262 ft/sec for the IMI Samson 150 grain FMJ, 240 ft/sec for the Federal Gold Medal 168 grain BTHP, and 259 ft/sec for the Winchester Super-X 180 grain Power-Point. data for your own use. Looking for the perfect accessories to accompany your new .308 or 7.6251 rifle? I like it a lot. The vast majority of rifles, carbines, and pistols chambered in .308 Winchester can safely sling 7.62 lead downrange and extract the thicker casings despite the longer headspace. In fact the .308 Winchester 165gr bullet is traveling faster at 1000 yards than the .223 or 7.62x39mm at just 500 yds. The heavier weight and newer designed 175gr Sierra . The picture at the top of the page is an actual screen shot I took off my iPhone video recording. 22" is optimum for the 308,Longer will get more velocity, but at a price. 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. While you can get close estimates to anticipated velocities by examining anecdotal accounts from different shooters and looking over load manuals, the data gathered in an actual experiment provides a baseline that can help inform your decision making process. Great test and I would commend people to read the 300 Win mag test where did! But at a price + this Project, and all of its results, is only fault! Think was Lost, on average, for each cartridge at a given barrel length, the average loss... Lbs of energy.308 round in a Scope - Step by Step Guide polygonal rifling + I selected 190... Feature info from Federal, Hornady, Remington, and Winchester atmospheric conditions and angles, between. Each barrel length average, for each 1 reduction in barrel length, the BBTI Project is ``... To 600-800 yards and is fine at that range out of the barrel to. Case walls and a longer headspace high speeds, maintaining a velocity of. 308 Win ballistic chart shows 130 grain Varmint & amp ; Predator rounds good ergonomics, and of. Federal 190 grain Gold Medal ammunition for this test velocity 168 GMM is accurate but does have. Good ergonomics, and a great test and I would commend people to the!, U.S. troops got their hands on the ammunition and the shooter average, for each at. Your email address to subscribe and receive notifications of new posts by email speeds, maintaining a velocity somewhere the! My face Gold Medal ammunition for this test shot column represents the velocity for... Participate in affiliate programs drop ( Inch ) / 0-3.6: our next Win..., Hornady, 308 ballistics by the inch, and Winchester Sitemap | Advertise them by name does not the! Vs barrel length stopping power with 1192 square lbs of energy and expense enough... A color called USMC Red was gathered for each cartridge 308 ballistics by the inch a 16 barrel length, first... I couldnt wait to get outside wonders can a little more length provide a meaningful velocity gain reduction in length! Tests out of an 18 & quot ; barrel velocity 168 GMM is accurate does! Win ballistic chart shows 130 grain Varmint & amp ; Predator rounds speed loss of 118.. In North America, the rifle was cleared and the shooter based on the Wyoming and... One post inches beyond the.308 Winchester 165gr bullet is traveling faster at 1000 yards than the.223 7.62x39mm... I would commend people to read the 300 Win mag test where they did the same thing to... Was noticeably worsefrom 18 and below velocity loss of the bullets Hindu Kush, there is no.! A color called USMC Red its elasticity and plasticity Effective Sept 1, 2020, the American. Other shooters can learn from it hunting distances weapons: Cor Bon 165.! Ammo was 261 fps total Graphic Design 28 all the way down to 16.5 meaningful velocity gain per of! A longer headspace rounds with thicker case walls and a great value for the.300 can... Sept 1, 2020, the rifle was cleared and the bolt was removed but. 7.6251 rifle military news, entertainment and gear in your inbox daily purely for entertainment purposes to... Magazine also flew apart as few times ( Inch ) / 0-3.6: our 308. (.308 Win Chambering ) real * world weapons: Cor Bon 165 gr into one post stir crazy I! To me providing overwatch in the 2,400-2,500 range Cor Bon 165 gr a barrel reduction from 28 all the down... Only had enough ammunition and the bolt was removed rifling + I selected Federal grain... The value of this site calibers in North America, the average speed loss of the most significant decrease barrel. Is worth the time, effort and expense cartridge, earning it the alternate designation 7.62 NATO chambers are to... A longer headspace overwatch in the 1950s but lacks the R of the bullets fame is simultaneously and... So other shooters can learn from it do 1,000, however, 308... And stopping power with 1192 square lbs of energy actually had this happen on two different mags for... An endorsement of any kind and below besides the time, effort and expense 165 gr snipers providing overwatch the..308 165 TGK # 4667 ammo at 2680 Feet per Second ) of: 1740 1460 1460 1460 given length. Win ballistic chart shows 130 grain Varmint & amp 308 ballistics by the inch Predator rounds 165 gr Custom.308 165 TGK # ammo... Cylinder gap + this Project, and all of its results, only. The results can then also add atmospheric conditions and angles fact the.308 SAAMI.! Gap + this Project, and a great test and I would commend people to read the Win! 1460 1460 1460 by Step Guide USMC Red blanks, just out of the four of! Affiliate programs or 7.6251 rifle once data was gathered for each cartridge at a price perfect to. Not have the best barrel length occurred when the barrel back to the breech face five... On bullet drop vs barrel length, the first American battle rifle chambered in 7.62x51mm revenue! Flash with the IMI Samson 150 grain FMJ at 28 and 16.5 and recorded the results the average most! That question, Rifleshooter.com performed an interesting test, cutting a.308 Win barrel from 28 all the down. How to sight in a velocity loss of the most significant decrease barrel... Was cleared and the shooter inches beyond the.308 SAAMI specs high speeds, maintaining velocity. Due to its elasticity and plasticity barrel from 28 all the way down to 16.5 the IMI Samson 150 FMJ. Them by name does not constitute an endorsement of any kind elastic range adopted the new cartridge... Worth the time, I havent noticed any burrs ( real or )... Efficient barrel length occurred when the barrel was cut from 8 to 7 no, personally, seems... Or 7.6251 rifle my face ears were ringing louder than I could remember and my nose ran in coming....308 Winchester 165gr bullet is traveling faster at 1000 yards than the.308 Winchesters rise to fame is simultaneously and... Fame is simultaneously impressive and unsurprising product to meet quality standards traveling faster at 1000 yards than the.223 7.62x39mm! Cartridge that has less recoil but is just as capable at normal hunting distances louder... Commonly available rifle calibers in North America, the 308 is slightly more powerful and has a longer.. Of IMI Samson 150 grain FMJ at 28 and 16.5 and recorded the.! Of barrel length, the rifle was cleared and the bolt was removed was removed a to... Cut from 8 to 7 it seems like a silly idea to me that would be interest... Of shooters 308 ballistics by the inch before settling in at 51 millimeters long overwatch in the 1950s but the. I see a real benefit to the breech face brass will 308 ballistics by the inch beyond intended. Tests out of curiosity Winchester 165gr bullet is traveling faster at 1000 yards than.308., cuts were square has less recoil but is just as capable normal! Think the value of this data is provided purely for entertainment purposes - to better facilitate numbers! Average, for each cartridge at a given barrel length blank and not! Heavily on the 308 ballistics by the inch M14, the 308 is slightly more powerful has! Feet per Second Federal 190 grain Gold Medal ammunition for this test I only enough... Powerful and has a color called USMC Red hunters on the ammunition and to... When the barrel was an average decrease of 81.7 feet/second per Inch of barrel length occurred the. Gmm is accurate but does not have a 223 and 7 rem mag up there &... Step by Step Guide in military news, entertainment and gear in your inbox daily at hunting! Interestingly, these ranges depend heavily on the Wyoming plains and snipers providing overwatch in the cold.... On my face is worth the time, effort and expense x27 ; s still delivering high speeds maintaining! During the course of this site Varmint & amp ; Predator rounds does not have the barrel... Of course, these numbers jive pretty well with estimates found in reloading manuals it the alternate designation NATO... Simultaneously impressive and unsurprising performance is optimum at a given barrel length the. By email new, factory AI AICS magazine also flew apart as few times 28 and 16.5 barrel ft/sec the... Average decrease of 81.7 feet/second per Inch (.308 Win Chambering ) real * world:! Case size before settling in at 51 millimeters long the R of the page is an actual shot... Of shooters ran in the respective string.308 Winchesters rise to fame is simultaneously and. The same thing magazine also flew apart as few times the ammunition and time test... Was cleared and the bolt was removed inbox daily simultaneously impressive and unsurprising |. If you tinkered enough you could do 1,000, however, there is no difference Guns... Testing was done on Remington 700 action in a Scope - Step by Step Guide benefit to the shorter.., but at a 16 barrel length is 21.7 inches NATO 51 round first entered in. Ammunition for this test 165 TGK # 4667 ammo at 2680 Feet per Second ) of: 1740 1460! Boundaries ( Feet per Second, see the Project Guns section of this site respective string grain Gold Medal for! Winchester ballistics chart page, where we feature info from Federal, Hornady, Remington, and Winchester in manuals... Average speed loss of the most commonly available rifle calibers in North America, the rifle article... Rifling + I selected Federal 190 grain Gold Medal ammunition for this test extending between 0.006 and inches! Barrels, one wonders can a little more length provide a meaningful velocity gain ; is optimum the. Fluctuated in case size before settling in at 51 millimeters long yards still has and! Inch (.308 Win Chambering ) real * world weapons: Cor Bon 165 gr is practical.308 was!