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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Your pick 7mm
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<blockquote data-quote="MontanaRifleman" data-source="post: 844221" data-attributes="member: 11717"><p>So basically your performance is out of a Hot Rod rifle. If you used a Hot Rod 300 WM you would also see better performance. </p><p></p><p>When you are comparing same barrel specs, the 300 WM will push a 215 at least as fast as a 7 RM will push a 180.</p><p></p><p>Some facts about ballistic physics... If you were to neck up a 7 RM to 308, it would push a 180 gr bullet faster than the 7 RM could push a 180 gr bullet. That is a fact of life and physics. The 7mm bullet would have higher BC, but the 30/7 RM would have the initial jump in performance. The 30/7 RM will be able to push a significantly heavier bullet at same velocity as the 7 RM.</p><p></p><p>The 300 WM is exactly the same cartridge as the 7 RM only .150 longer with 8% more case capacity. The external ballistics between the 2 will be similar but the WM has a clear advantage. In terminal ballistics, the WM has an even greater advantage... period. It pushes a a larger cal bullet with 20% more mass with a higher BC down range, and the farther down range they get the more the advantage grows because of the higher BC.</p><p></p><p>The idea that the 7 RM can out perform the 300 WM is pure myth. And I'm not just an armchair internet jockey with no 7 RM experience.</p></blockquote><p></p>
[QUOTE="MontanaRifleman, post: 844221, member: 11717"] So basically your performance is out of a Hot Rod rifle. If you used a Hot Rod 300 WM you would also see better performance. When you are comparing same barrel specs, the 300 WM will push a 215 at least as fast as a 7 RM will push a 180. Some facts about ballistic physics... If you were to neck up a 7 RM to 308, it would push a 180 gr bullet faster than the 7 RM could push a 180 gr bullet. That is a fact of life and physics. The 7mm bullet would have higher BC, but the 30/7 RM would have the initial jump in performance. The 30/7 RM will be able to push a significantly heavier bullet at same velocity as the 7 RM. The 300 WM is exactly the same cartridge as the 7 RM only .150 longer with 8% more case capacity. The external ballistics between the 2 will be similar but the WM has a clear advantage. In terminal ballistics, the WM has an even greater advantage... period. It pushes a a larger cal bullet with 20% more mass with a higher BC down range, and the farther down range they get the more the advantage grows because of the higher BC. The idea that the 7 RM can out perform the 300 WM is pure myth. And I'm not just an armchair internet jockey with no 7 RM experience. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Your pick 7mm
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