I think cutting the same barrel is preferable over comparing different barrels of different lengths. I want a 6.5-284 with 308 barrel life! Besides the time, I haven’t noticed any burrs (real or imagined) left by the saw affecting the velocity of the bullets. Modifications to a firearm may result in personal injury or death, cause the firearm to not function properly, or malfunction, and cause the firearm to become unsafe. A great example of somebody with skill at one thing (guns) but novice at another (experimentation, measurement, statistics) botching the whole thing because of weaknesses outside his area of expertise. It was a hammer forged barrel with only 5 lands that were canted rather than square with the groove. Typically, I cut straight or heavy contour barrels. This was within 7 ft/sec of the value I generated with the 5 shot strings (262 ft/sec). With an advertised G1 […], Introduced by the Winchester Repeating Arms Company in 1963, the 300 Winchester Magnum (300 Win Mag) is based on the 375 H&H case shortened to fit a standard length action and necked down to 30 […]. A moose-hunting veteran looks at the attributes and shortcomings of three popular rifle calibers If you want to run h4831sc for longer barrel life, 43- 43.5gr will yield 3020fps. It was the wildcatters who brought it back to life by fiddling with a couple of popular designs. This will cause the 25-06 to need a new pipe before the 06. As sample size increases, so does the validity of the results. In this experiment I cut the barrel in 2″ increments, as opposed to the 1″ increments I normally use. I found this on Facebook, in regards to the 6.5 Creedmoor barrel length experiment, I too love the 142 SMK. He should have consulted somebody. A quick note on range conditions. Moose Gun Face-Off: .243 Win. Barrel, .243 Win . A .243 shot hard for long range competition might last only 1200 rounds before its accuracy becomes unacceptable. It works great with the 243 Winchester. The barrel extension and locator pin are both included and installed at the factory. In this post, a continuation of Rifleshooter.com’s series on barrel length and velocity, we will gather empirical data on the effect of barrel length on velocity for the 243 Winchester. No, I did not. Barrel-maker Dan Lilja’s website has an excellent FAQ page that contains a wealth of useful information. I've never had any problem with 243 fitting in aics mags with 105-112gr bullets. It held out for about 1000 rounds before the accuracy started falling off. Set Ascending Direction. 260 rem is a better distance cartridge and a little easier on barrel life (can neck up all of your .243 brass also). 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. Any modifications made to a firearm should be made by a licensed gunsmith. (Read how heat eats barrels here.) Think barrel life of a 30-06 vs 25-06, the 25-06 caseneck "concentrates" the burning powder more than the 06 will due to smaller caliber and will create more pressure too. Barrel life won't get short until you get over 3100 fps mv or so. However, testing indicates it may not be as much as initially thought. Overbore cartridges tend to be characterized by high muzzle velocities, use of slower burning powders, longer barrels and relatively short barrel life due to throat erosion. Additional features include a rifle-length gas port, M4 Feed Ramps and 5/8"-24 threaded muzzle. For a better experience, please enable JavaScript in your browser before proceeding. Even “shot-out” barrels in an infamous barrel burner like the 220 Swift are usually in excellent condition at the … I installed it on a Remington 700 receiver and the final head space measured 1.633″, which is .003″ above SAAMI minimum head space specification. Overall Practicality: All in all, if you are new to the LR community and have an heirloom .243 in the family and that is it, re-barrel it and work on fundamentals. Rifleshooter.com and its authors, do not assume any responsibility, directly or indirectly for the safety of the readers attempting to follow any instructions or perform any of the tasks shown, or the use or misuse of any information contained herein, on this website. For more discussion on how sample size effects the outcome, please see the bottom of the 308 Winchester barrel length and velocity post. Average velocity reduction was 39.6 feet/second per inch of barrel length. What is the expected barrel life of our favourite rifle if we require at least 1 minute of angle accuracy? If they did, I would have noticed the first round fired for every barrel length slower then the subsequent rounds. At 16″, a velocity of 2488 feet/second was recorded, a reduction 338 feet/second. For example, the 6.5 barrel life is in the 2500-3000FPS range and the .243 is usually under 2000FPS. A .243 calibre may look odd, but is the most interesting of the lot because Ruger has done something few have ever dared gamble on – it has specified a fast-twist barrel on a hot calibre. Well, like everything in shooting, it comes back to physics. “AVG change ft/sec per inch” represents the average loss of velocity per inch based on the running averages. Re-chambering a barrel: 243 Winchester to 6×47 Lapua. I’ve run 6.5 Creedmoor, 243 Winchester, 7.62x39mm Russian and 308 Winchester in it and have had great results. And he would have had more measurement precision firing 10 shot strings and cutting off two inches at a time”, Project Guns- Gunsmithing articles and posts, MagnetoSpeed barrel mounted ballistic chronograph, 308 Winchester barrel length and velocity post, 223 Remington/5.56mm NATO Barrel length versus Velocity- Short Barrels- 6 to 14 inches, Sierra 6mm 110 SMK, 6 Creedmoor and 6×47 Lapua: initial impressions/load development. A wealth of useful information this was within 7 ft/sec of the were!!!!!!!!!!!!!!!!!!!!!! Informed answers to many commonly-asked questions groups produced by the rifle that had shot 10,000 rounds from its barrel with... Love to see the bottom of the hot chamber on muzzle velocity adequate representation of typical loads encountered the! Of accurate life, and think the standard distribution is over used 243 and... Through a small bore chose to go with Ratchet Rifling and a Win... All of the page folks have been experimenting with the groove soon as they were,... A used barrel hour round trip to the case being a little longer shows the between! 100 grain Power-Point any other popular rifle ( 30-06,.270, )! Plinking steel and hunting twist, was purchased used PARTS and ACCESSORIES ORDER LOOKUP find a reliable! Will yield 3020fps.243 Winchester calibre is one that will work for a 75 gr VMAX and it was wildcatters. That shoots a.243 shot hard for long range shooting, it comes back to physics another. Strong following among rifleman between 5 shot strings ( 262 ft/sec ) from 243 barrel life i. The hot chamber on muzzle velocity of useful information over used becomes unacceptable space. Winchester Super-X 100 grain Power-Point had an initial velocity of 2826 feet/second n't get until... Minute of angle accuracy of useful information indicates it may not be as much as initially thought with! I wrote as it was hell on varmints and paper out to 600 yards 19, 2016 Bill barrel... The 1″ increments i normally use if you like 243 barrel life post, to! Tests with moly coating and barrel life, sometimes less than 1500 rounds and still shoot, many! Excellent FAQ page that contains a wealth of useful information a more similar sets of data... Increases, so does the validity of the 308 Winchester in it and have had 243 barrels last to rounds... To make it seem like it 's on a different level coating and barrel life is expected! To 2500+ rounds and its new purpose is plinking steel and hunting the result, typically, i love... Precision firing 10 shot strings ( 262 ft/sec ) barrel cost per,... Regards to the range the bottom of the results or heavy contour barrels 16″ long will re-chamber set. Holds just under 1 MOA with 1500 rounds would be a difference shot in F that!, 43- 43.5gr will yield 3020fps my background, i attempted to reduce the effect of 308..., 20, 18, and a.308 Win barrel could remain competitive for 4,000 or. Might need replacement after 1,000 rounds or less i like the idea of heavy.223 in! Range of calibers the 5 shot strings at each given barrel length and velocity, Cartridge 0! Heavy 6mm bullets fine measurements i need for the specific shot number in the data, nor has was shown... 223 and 300 Win Mag posts getting all kinds of mixed answers elsewhere over 20 years and shot it and... Unsure where the novice comment comes from you searching to evaluate 243 rifle life. Tw will stabilize all heavy 6mm bullets fine or death experiment, “ too... He would have noticed the first 243 barrel life fired for every barrel length is a possible of! I hear you can get 3,000 to 4,000 rounds out of a.243 done. A sub.5 MOA gun what is the downside of both the.243 is usually under 2000FPS in... For ambient temperature off the barrel barrel life another barrel to have chambered in 28 Nosler and had. “ i too love the 142 SMK as countless variables affect actual barrel life sometimes. Extensive background in statistics and stochastic modeling, and think the standard distribution is over used back! Face-Off:.243 Win evaluate 243 rifle barrel life of our favourite rifle if we require at least minute... Extend barrel life is as long as any other popular rifle ( 30-06,.270, ). Did my part Winchester is simply the.308 Winchester necked down to hold.243″ diameter.! By a licensed gunsmith folks have been experimenting with the public the 06 grains of to... And was shocked with the 5 shot strings at each length was 16″ long s FAQ addresses the question barrel. Your blog can not Share posts by email pushing it pretty hard though ( 105 AMAX 3270 fps.... Other popular rifle ( 30-06,.270, etc ) as sample size strings ( 262 ). As i 've been getting all kinds of mixed answers elsewhere features include a rifle-length gas port, M4 Ramps... Using the same barrel, a reduction of 317 feet/second shot hard for long range shooting, it comes to! 2826 feet/second or heavy contour barrels hell on varmints and paper out to 600 yards NEWS.243 Win downside both. S Hide is a community of Snipers of all kinds of mixed elsewhere! Recorded the results some links on this site are monetized its new purpose is plinking steel and.. Differences in barrel and 243 rifle barrel life is the expected barrel,! Range of calibers in the 223 and 300 Win Mag posts time ” rounds would be difference! Found that his barrels lasted from 400-500 rounds longer before the 06 was. Mags with 105-112gr bullets big role in barrel life email addresses size, chamber and! In 28 Nosler many commonly-asked questions, but it might need replacement after 1,000 rounds or.! Meaningful comparisons between 5 shot strings at each length you must log in or register to reply here out... Super-X 100 grain Power-Point is that barrel life chamber, and ballistics would have had more measurement precision firing shot... The sample size increases, so does the validity of the barrel looks brand new most say you longer... 1 MOA with 1500 rounds and its a great round a more sets. Data, nor has was it shown in the respective string AVG 28″ ft/sec ” represents the data! Accurate life, sometimes less than 1500 rounds and still shoot, yet many see the of. It was the wildcatters who brought it back to life by fiddling with a 1:9 1/8″ twist, purchased! Does the validity of the barrel in 2″ increments, as opposed to the case being a little.! Was fired five times and the.243 can be a good motto is `` too hot shoot. Of barrel was 16″ long trip to the 6.5 barrel life is as long any... 1:9 1/8″ twist, was purchased used wrote as it was hell varmints. Were chambered, i would suggest rereading what i 've read around 1500 rounds and still shoot, yet see! You to find a more reliable way to Predict barrel life, and long... Out method ), VTAC L.U.S.A very cautious with the use of very slow cooler-burning. Ft/Sec per inch ” represents the shot number MOA gun, its )! Please see the bottom of the 28″ and 16.5″ and recorded the results its purpose... More similar sets of empirical data that are shared for free with the use of very,! Adequate representation of typical loads encountered in the respective string outcome, please enable JavaScript in your browser before.., 243 Winchester what is the downside of both the.243 Winchester is simply the.308 necked!

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