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Rifles, Reloading, Optics, Equipment
Reloading
Efficiency question about guns....
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<blockquote data-quote="MontanaRifleman" data-source="post: 1053575" data-attributes="member: 11717"><p>Some very good replies here. That said, a smaller caliber is NEVER more efficient than a larger caliber. A smaller cartridge in the same caliber is ALWAYS more efficient (powder vs velocity/energy) than a larger. Shape of the case has little to do with it. A 300 WM will out perform a 300 WSM because the WM has more case capacity. A 7 WSM and 7 mag are going to be very close with the 7 RM usually on top. A 300 WSM/WM is more efficient than a 300 RUM. A 30-06 is more efficient than a 300 WSM or WM. And a 308 Win is more efficient than a 30-06. BTW, a 300 RUM is a long 300 WSM.</p><p></p><p>I have loaded for the 7mm RM, 300 WSM and 300 RUM. In the 7 mag, the best velocity I got with a 160 gr bullet was 3150 out of a 24" barrel using RL17. In the 300 WSM, I was able to push a 180 gr bullet 3200 plus out of a 24 3/8ths barrel using 5 less grains of RL17 than the 7 Mag.</p><p></p><p>In the 300 RUM I could push the the 230 Hybrid to 3150 or so with about 96 gr or so of RL33 out of a 27" barrel. That is 300 fps faster faster than your 300 WM but there is an efficiency cost.</p><p></p><p>Bottom line is, if you want performance, you're gonna have to pay for it. No pian, no gain. Question is, how much performance do you want and more importantly, how much are you willing to pay for it.</p><p></p><p>Efficiency IS relative but efficiency is not my priority in LR. If I was a short to mid range hunter in the Eastern/Southern states, my go to rifle would be a 308 Win hands down. But I am a guy in Montana where there are a lot of long shots and very few calm days.</p><p></p><p>Cheers</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 1053575, member: 11717"] Some very good replies here. That said, a smaller caliber is NEVER more efficient than a larger caliber. A smaller cartridge in the same caliber is ALWAYS more efficient (powder vs velocity/energy) than a larger. Shape of the case has little to do with it. A 300 WM will out perform a 300 WSM because the WM has more case capacity. A 7 WSM and 7 mag are going to be very close with the 7 RM usually on top. A 300 WSM/WM is more efficient than a 300 RUM. A 30-06 is more efficient than a 300 WSM or WM. And a 308 Win is more efficient than a 30-06. BTW, a 300 RUM is a long 300 WSM. I have loaded for the 7mm RM, 300 WSM and 300 RUM. In the 7 mag, the best velocity I got with a 160 gr bullet was 3150 out of a 24" barrel using RL17. In the 300 WSM, I was able to push a 180 gr bullet 3200 plus out of a 24 3/8ths barrel using 5 less grains of RL17 than the 7 Mag. In the 300 RUM I could push the the 230 Hybrid to 3150 or so with about 96 gr or so of RL33 out of a 27" barrel. That is 300 fps faster faster than your 300 WM but there is an efficiency cost. Bottom line is, if you want performance, you're gonna have to pay for it. No pian, no gain. Question is, how much performance do you want and more importantly, how much are you willing to pay for it. Efficiency IS relative but efficiency is not my priority in LR. If I was a short to mid range hunter in the Eastern/Southern states, my go to rifle would be a 308 Win hands down. But I am a guy in Montana where there are a lot of long shots and very few calm days. Cheers [/QUOTE]
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