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A 44 mag with 300ish grain bullets at 1200 fps compared to a 454 with 300ish grain bullets at 1500 fps. My thinking is that the 1500fps bullet will get more penetration than the 1200 fps bullet. It is a full 25% faster. I realize that will not equate to 25% more penetration, but it should be significantly more.
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That is what most would assume but testing has not indicated a measurable difference. If you don't need the flatter trajectory you're beating yourself up for nothing.
http://www.handloads.com/misc/Lineba...ts.asp?Order=5
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Or was this a study on cast bullets in 45 colt and 44 mag at 1200 fps?
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How could one conclude that exceeding 1200-1300fps does not yield an appreciable difference if you don't exceed 1200fps???