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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
“My rifle shoots .2s and .3s” ... huh?
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<blockquote data-quote="Bart B" data-source="post: 1804215" data-attributes="member: 5302"><p>A study on barrel life was done some years ago. Based on Sierra Bullets test barrel lives and those of top ranked competitive shooter's barrels, if max powder charge in grains was the same number of square millimeters of bore cross section area, barrel life was 3000 to 3500 rounds. Starting at 1/4 MOA average to 3/8 MOA average at 100 yards</p><p></p><p>Cartridges burning 41% more powder got 1500 to 1700 round barrel lives. 100% more powder got 750. to 850.</p><p></p><p>Hunting rifles get by with twice those numbers. Military service rifle barrels, 4 to 5 times those numbers.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1804215, member: 5302"] A study on barrel life was done some years ago. Based on Sierra Bullets test barrel lives and those of top ranked competitive shooter's barrels, if max powder charge in grains was the same number of square millimeters of bore cross section area, barrel life was 3000 to 3500 rounds. Starting at 1/4 MOA average to 3/8 MOA average at 100 yards Cartridges burning 41% more powder got 1500 to 1700 round barrel lives. 100% more powder got 750. to 850. Hunting rifles get by with twice those numbers. Military service rifle barrels, 4 to 5 times those numbers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
“My rifle shoots .2s and .3s” ... huh?
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