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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 sherman field test
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<blockquote data-quote="benchracer" data-source="post: 1299030" data-attributes="member: 22069"><p>My 338 Sherman is under construction. It will have a 26" barrel. I had anticipated the optimum burn rate range would fall somewhere around RL22/MRP/RL26.</p><p></p><p>Initial real world results strongly indicate a preference for powders similar to RL17 in burn rate. Based on Rich's initial results, I don't believe I will see significant gains from the extra barrel length on my rifle.</p><p></p><p>It looks to me like 24" will prove to be about the ideal length for the 338 Sherman. In such a configuration, the 338 Sherman looks to be a versatile cartridge in a carry weight rifle, yielding external ballistics very similar to the 300 Win Mag/Berger 215/H1000 combination, with a bit more frontal diameter and bullet weight.</p><p></p><p>200ish grain bullets @ 3100 will make for a flat shooting, hard hitting open country deer/pronghorn setup, while 250's @ 2800 will lay the smackdown on elk, bear, and moose. All of this from a standard bolt face, 30-06 length action.</p><p></p><p>Going with a long barrel, heavy rifle configuration with this cartridge is unlikely to yield much of a performance gain, while trading away the virtues of the 338 Sherman in a carry weight rifle.</p><p></p><p>Of course, those decisions are yours to make. Just food for thought...</p></blockquote><p></p>
[QUOTE="benchracer, post: 1299030, member: 22069"] My 338 Sherman is under construction. It will have a 26" barrel. I had anticipated the optimum burn rate range would fall somewhere around RL22/MRP/RL26. Initial real world results strongly indicate a preference for powders similar to RL17 in burn rate. Based on Rich's initial results, I don't believe I will see significant gains from the extra barrel length on my rifle. It looks to me like 24" will prove to be about the ideal length for the 338 Sherman. In such a configuration, the 338 Sherman looks to be a versatile cartridge in a carry weight rifle, yielding external ballistics very similar to the 300 Win Mag/Berger 215/H1000 combination, with a bit more frontal diameter and bullet weight. 200ish grain bullets @ 3100 will make for a flat shooting, hard hitting open country deer/pronghorn setup, while 250's @ 2800 will lay the smackdown on elk, bear, and moose. All of this from a standard bolt face, 30-06 length action. Going with a long barrel, heavy rifle configuration with this cartridge is unlikely to yield much of a performance gain, while trading away the virtues of the 338 Sherman in a carry weight rifle. Of course, those decisions are yours to make. Just food for thought... [/QUOTE]
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338 sherman field test
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