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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bore Capacity versus Barrel Life
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<blockquote data-quote="coyotezapper" data-source="post: 1154270" data-attributes="member: 20438"><p>Ok, here is another example for you. I just came across an article that Todd Hodnett wrote on barrel twists and he gave an example of a .308 Win that had a 1-7.8" twist bbl and it went 14,000 rounds before being shot out. He does not specify what his definition of shot out was but he did state the accuracy was 3/4" 5 shots ( which he categorized as ok ) until about 200 rounds where it became a 1/4" or better shooter. What caught my attention was not just the round count but the twist rate. Faster twist equals higher pressures. It was not clear on the manufacturer of the bbl but he did mention that only Rock and Broughton would make him a bbl with this twist rate at that time. So I am assuming cut rifle 5R from Rock and Button 5C from Broughton.</p></blockquote><p></p>
[QUOTE="coyotezapper, post: 1154270, member: 20438"] Ok, here is another example for you. I just came across an article that Todd Hodnett wrote on barrel twists and he gave an example of a .308 Win that had a 1-7.8" twist bbl and it went 14,000 rounds before being shot out. He does not specify what his definition of shot out was but he did state the accuracy was 3/4" 5 shots ( which he categorized as ok ) until about 200 rounds where it became a 1/4" or better shooter. What caught my attention was not just the round count but the twist rate. Faster twist equals higher pressures. It was not clear on the manufacturer of the bbl but he did mention that only Rock and Broughton would make him a bbl with this twist rate at that time. So I am assuming cut rifle 5R from Rock and Button 5C from Broughton. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bore Capacity versus Barrel Life
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