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Barrel life etc
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<blockquote data-quote="Bart B" data-source="post: 92707" data-attributes="member: 5302"><p>I've been monitoring barrel life that competitive shooters get for years. So I came up with a rule of thumb that has worked very well. </p><p></p><p>But it depends on how good of a shot you are. An excellent marksman will notice accuracy degradation before a duffer will. A competitor on a US international team will rebarrel his .308 Win. at about 3000 rounds while a military combatant will rebarrel his M14 at about 10,000 rounds. And rapid fire erodes 'em faster than slow firing.</p><p></p><p>What I've learned is most centerfire barrels shoot the best for about 3000 rounds when the powder charge equals 1 grain for each square millimeter of the bore's cross sectional area. Double the powder charge for a given bore diameter and barrel life drops to 750 rounds.</p></blockquote><p></p>
[QUOTE="Bart B, post: 92707, member: 5302"] I've been monitoring barrel life that competitive shooters get for years. So I came up with a rule of thumb that has worked very well. But it depends on how good of a shot you are. An excellent marksman will notice accuracy degradation before a duffer will. A competitor on a US international team will rebarrel his .308 Win. at about 3000 rounds while a military combatant will rebarrel his M14 at about 10,000 rounds. And rapid fire erodes 'em faster than slow firing. What I've learned is most centerfire barrels shoot the best for about 3000 rounds when the powder charge equals 1 grain for each square millimeter of the bore's cross sectional area. Double the powder charge for a given bore diameter and barrel life drops to 750 rounds. [/QUOTE]
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