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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bore Capacity versus Barrel Life
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<blockquote data-quote="shaughn" data-source="post: 1154541"><p>I think at one time someone (Ackley?) had a slide rule that one could use to figure out expansion ratio.. Case capacity to bore size and using another formula based on powder type, burn rate, bullet, rate of fire,temp and a few other factors to get a rather good estimate of barrel life.</p><p></p><p>My father who had competed in various styles of rifle competition as a young man said he generally, changed out barrels at 3000 rounds and he used the 30/06-7.62N-300 Winchester Mag.</p><p></p><p>As he put it the barrels had plenty of life and acceptable accuracy left in them (minute of game) just not enough to continue on when money or prizes were on the table.</p><p></p><p>For hunting rifles I imagine the numbers could be closer to 5000 rounds or more, dependent on caliber (6.5/378 W is going to go thru barrels like a coon shucking corn no matter what you do), provided a modicum of barrel care, no rapid fire strings, careful cleaning as needed.</p></blockquote><p></p>
[QUOTE="shaughn, post: 1154541"] I think at one time someone (Ackley?) had a slide rule that one could use to figure out expansion ratio.. Case capacity to bore size and using another formula based on powder type, burn rate, bullet, rate of fire,temp and a few other factors to get a rather good estimate of barrel life. My father who had competed in various styles of rifle competition as a young man said he generally, changed out barrels at 3000 rounds and he used the 30/06-7.62N-300 Winchester Mag. As he put it the barrels had plenty of life and acceptable accuracy left in them (minute of game) just not enough to continue on when money or prizes were on the table. For hunting rifles I imagine the numbers could be closer to 5000 rounds or more, dependent on caliber (6.5/378 W is going to go thru barrels like a coon shucking corn no matter what you do), provided a modicum of barrel care, no rapid fire strings, careful cleaning as needed. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bore Capacity versus Barrel Life
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