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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.260-Long Barrel or Short?
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<blockquote data-quote="Mikecr" data-source="post: 558609" data-attributes="member: 1521"><p>IMO, an important factor w/regard to accuracy(with boat tails) is the muzzle pressure Lou mentioned.</p><p>This affects clean bullet release much like a poor crown, and greatly amplifies any crown issues.</p><p>If you look at very accurate load & barrel lengths with cartridges of various capacities, I'm confident you'll see muzzle pressures 6Kpsi & below.</p><p></p><p>But then shorter barrels(all else equal) are stiffer, so a rational balance is probably best.</p><p>If releasing flat base bullets from a pristine crown, you can benefit fully from 20" barrels.</p><p>Not so much with a 260 pushing VLDs as 12kpsi would bitch slap them bullets.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 558609, member: 1521"] IMO, an important factor w/regard to accuracy(with boat tails) is the muzzle pressure Lou mentioned. This affects clean bullet release much like a poor crown, and greatly amplifies any crown issues. If you look at very accurate load & barrel lengths with cartridges of various capacities, I'm confident you'll see muzzle pressures 6Kpsi & below. But then shorter barrels(all else equal) are stiffer, so a rational balance is probably best. If releasing flat base bullets from a pristine crown, you can benefit fully from 20" barrels. Not so much with a 260 pushing VLDs as 12kpsi would bitch slap them bullets. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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.260-Long Barrel or Short?
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