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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Lands/Grooves choice
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<blockquote data-quote="Bart B" data-source="post: 116148" data-attributes="member: 5302"><p>Amongst top competitive rifle shooters, lighter/shorter bullets for a given caliber tend to shoot more accurate with fewer grooves than with more grooves. I don't know the details as to why, but the facts and results of accuracy tests seem to prove this out when the only thing different across them is bullet weight/length and powder charge weight and number of grooves.</p><p></p><p>I don't know about barrel life as I don't know of anyone who's made proper tests to get valid results. There are varying opinions about barrel life versus groove count. And "accurate" barrel life depends as much on how the accuracy tests are conducted plus how well the ammo's made and shot as the barrel quality and type, so one can get all sorts of numbers.</p></blockquote><p></p>
[QUOTE="Bart B, post: 116148, member: 5302"] Amongst top competitive rifle shooters, lighter/shorter bullets for a given caliber tend to shoot more accurate with fewer grooves than with more grooves. I don't know the details as to why, but the facts and results of accuracy tests seem to prove this out when the only thing different across them is bullet weight/length and powder charge weight and number of grooves. I don't know about barrel life as I don't know of anyone who's made proper tests to get valid results. There are varying opinions about barrel life versus groove count. And "accurate" barrel life depends as much on how the accuracy tests are conducted plus how well the ammo's made and shot as the barrel quality and type, so one can get all sorts of numbers. [/QUOTE]
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