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Long Range Hunting & Shooting
Re-barreling .308 to something big?
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<blockquote data-quote="marksman1941" data-source="post: 2886200" data-attributes="member: 68542"><p>I had initially looked at 338 federal (and 358 win is the same, just with a 35 cal bullet) but energy wise it still wasn't much of a step up above 308 in that configuration. Based on some googling and energy calculations, a 16" 308 shooting 165's should have about 2200ftlbs of energy. A 338F with 210's should have 2480ftlbs, and a 358win with 225's is about 2460ftlbs. I know energy isn't the be all end all, but it's certainly a part of the equation. </p><p></p><p>I guess there's not a huge difference between the 338 fed and the cartridges I listed though, when looking at published velocities. 450BM with a 250 gets me to about 2680ftlbs, but the others fall behind it with the exception of the 45 raptor. </p><p></p><p>Looks like the raptor sends a 300gr bullet at 2250fps for 3370ftlbs of energy. It would have the ballistic coefficient of a windsock but I'm okay with that.</p><p></p><p>I have a lot of rifles that work perfectly well for killing critters as needed. This one I was looking for the Thors Hammer effect on a critter, and also something a bit cool and out of the ordinary.</p></blockquote><p></p>
[QUOTE="marksman1941, post: 2886200, member: 68542"] I had initially looked at 338 federal (and 358 win is the same, just with a 35 cal bullet) but energy wise it still wasn’t much of a step up above 308 in that configuration. Based on some googling and energy calculations, a 16” 308 shooting 165’s should have about 2200ftlbs of energy. A 338F with 210’s should have 2480ftlbs, and a 358win with 225’s is about 2460ftlbs. I know energy isn’t the be all end all, but it’s certainly a part of the equation. I guess there’s not a huge difference between the 338 fed and the cartridges I listed though, when looking at published velocities. 450BM with a 250 gets me to about 2680ftlbs, but the others fall behind it with the exception of the 45 raptor. Looks like the raptor sends a 300gr bullet at 2250fps for 3370ftlbs of energy. It would have the ballistic coefficient of a windsock but I’m okay with that. I have a lot of rifles that work perfectly well for killing critters as needed. This one I was looking for the Thors Hammer effect on a critter, and also something a bit cool and out of the ordinary. [/QUOTE]
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Re-barreling .308 to something big?
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