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Barrel Life?
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<blockquote data-quote="Don A Parsons" data-source="post: 1399525" data-attributes="member: 97414"><p>I look at barrel life in 2 categories. </p><p></p><p>Category #1</p><p>A rifle that I "normally" use from 100 to 400 meters. </p><p>If it gets 1" to 1 1/2" MOA, then it's good to go. </p><p></p><p>Category #2</p><p>I like my 1000 meters units to be "able to pull off 1/4" MOA. </p><p></p><p>If I shoot 3 groups of 10 shots each and 65% of the bullets "on average" are out side of the inner ring,,, then the rifle gets a new barrel.</p><p>This is done at 900 meters / 1000 yards and "hoping" to land the 65% of 30 shots in-side the 5" ring. </p><p>That is a 10" V ring for the TR folks. </p><p></p><p>The above is a rule of thumb, so pick and choose what works for you .</p><p></p><p>PS: It is wise to do the rifling barrle test on the calm-est of calm days to lesson the chances of this becoming a factor .</p><p>No wind and the best of shooting skills are priority 2,,, the steadest of "hand & eye" will determine priority 1.</p><p></p><p>Only the shooter will know when the time is due. </p><p></p><p>Western Canada Don</p></blockquote><p></p>
[QUOTE="Don A Parsons, post: 1399525, member: 97414"] I look at barrel life in 2 categories. Category #1 A rifle that I "normally" use from 100 to 400 meters. If it gets 1" to 1 1/2" MOA, then it's good to go. Category #2 I like my 1000 meters units to be "able to pull off 1/4" MOA. If I shoot 3 groups of 10 shots each and 65% of the bullets "on average" are out side of the inner ring,,, then the rifle gets a new barrel. This is done at 900 meters / 1000 yards and "hoping" to land the 65% of 30 shots in-side the 5" ring. That is a 10" V ring for the TR folks. The above is a rule of thumb, so pick and choose what works for you . PS: It is wise to do the rifling barrle test on the calm-est of calm days to lesson the chances of this becoming a factor . No wind and the best of shooting skills are priority 2,,, the steadest of "hand & eye" will determine priority 1. Only the shooter will know when the time is due. Western Canada Don [/QUOTE]
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