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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Life of a .243 Win. Barrel?
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<blockquote data-quote="Mikecr" data-source="post: 813113" data-attributes="member: 1521"><p>And then there is the defining of 'accurate' barrel life.</p><p>A gun shooting 1/4moa, will show exactly where accuracy departs. This would probably be ~1400rnds from a 243Win.</p><p>A gun considered acceptable at 1moa, will likely go several thousand rounds before barrel life worsens it even further..</p><p>With this the question must be qualified for a valid answer.</p><p></p><p>While Tubb probably won with a lot of cartridges, he created the 6XC to improve on the 243Win, including barrel life. Then Joe Hendrick's 6CM(competition match, not Creedmore) further improved the 6XC (barrel life-wise) by providing capacity for cooler H1000 powder.</p><p>Also, rapid shooting for group, even with cooling between groups, represents a big hit on barrel life.</p><p>Another bad situation here: high pressures.</p><p></p><p>A 243Win has always been known to produce low barrel life and with this(and other poor reloading attributes) it fell out of favor in competition long ago. It's overbore in capacity, and much of the powder follows the bullet(due to low shoulder angle), adding to recoil, burning further down a bore, and increasing muzzle pressures and ES.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 813113, member: 1521"] And then there is the defining of 'accurate' barrel life. A gun shooting 1/4moa, will show exactly where accuracy departs. This would probably be ~1400rnds from a 243Win. A gun considered acceptable at 1moa, will likely go several thousand rounds before barrel life worsens it even further.. With this the question must be qualified for a valid answer. While Tubb probably won with a lot of cartridges, he created the 6XC to improve on the 243Win, including barrel life. Then Joe Hendrick's 6CM(competition match, not Creedmore) further improved the 6XC (barrel life-wise) by providing capacity for cooler H1000 powder. Also, rapid shooting for group, even with cooling between groups, represents a big hit on barrel life. Another bad situation here: high pressures. A 243Win has always been known to produce low barrel life and with this(and other poor reloading attributes) it fell out of favor in competition long ago. It's overbore in capacity, and much of the powder follows the bullet(due to low shoulder angle), adding to recoil, burning further down a bore, and increasing muzzle pressures and ES. [/QUOTE]
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Life of a .243 Win. Barrel?
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