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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Light weight mountain rifle. Help me choose chambering
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<blockquote data-quote="atl5029" data-source="post: 1345637" data-attributes="member: 84273"><p>This gets back to the old debate about powder burn in short barrels. From what I've read both here and elsewhere, I don't think there is any barrel length/cartridge combo where grains of unburned powder fly out of the muzzle after the bullet, save some very short barrels with very overbore rounds. As for the same velocity, the SAUM shoots 160+ class bullets a full 300-400 FPS faster than the 08 out of 24 inch barrels. I find that the smaller cartridges can hang with magnums when shooting lighter bullets, but when shooting heavy for caliber, that's where the magnums pull away. I do think that difference might decrease a little in a shorter barrel, but I don't think 4 inches of barrel is going to but the SAUM and 08 on a level velocity field. From what I've read in barrel shortening studies, you lose somewhere between 10-50 FPS per inch of barrel, so the SAUM should still be lots faster in a shorter barrel. I don't think the 08 is going to suit my purposes as well as the SAUM</p></blockquote><p></p>
[QUOTE="atl5029, post: 1345637, member: 84273"] This gets back to the old debate about powder burn in short barrels. From what I've read both here and elsewhere, I don't think there is any barrel length/cartridge combo where grains of unburned powder fly out of the muzzle after the bullet, save some very short barrels with very overbore rounds. As for the same velocity, the SAUM shoots 160+ class bullets a full 300-400 FPS faster than the 08 out of 24 inch barrels. I find that the smaller cartridges can hang with magnums when shooting lighter bullets, but when shooting heavy for caliber, that's where the magnums pull away. I do think that difference might decrease a little in a shorter barrel, but I don't think 4 inches of barrel is going to but the SAUM and 08 on a level velocity field. From what I've read in barrel shortening studies, you lose somewhere between 10-50 FPS per inch of barrel, so the SAUM should still be lots faster in a shorter barrel. I don't think the 08 is going to suit my purposes as well as the SAUM [/QUOTE]
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Light weight mountain rifle. Help me choose chambering
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