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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm or 30 cal? Just for curiosity’s sake
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<blockquote data-quote="Paladin300" data-source="post: 2182996" data-attributes="member: 115299"><p>The absolute truth and thus ,proper and better quote for LRH purposes is this, "When shooting bullets with similar SDs at similar velocities the advantage always goes to the larger caliber." Similarly, "when shooting bullets of identical weight at identical velocities in identical guns the larger caliber will recoil less." It could also be argued that the larger caliber offers more versatility for the simple fact that it offers a larger range of projectile weights. The larger projectile will also carry more energy when shooting bullets of equal SDs. It really is a matter of simple physics. The smaller caliber's only advantage is recoil when shooting a lighter weight bullet. You also gain some advantages in bc when shooting equal weights but that is quickly lost when SD is the same. The larger bullet will deliver more efficient terminal results in this case. The 7mm will shoot a little flatter but the 30 will deliver more energy and a larger wound cavity. The smaller caliber shooting similar weights and velocities, all other things being equal, will also have a significant reduction in barrel life. Again, all things being equal, I think the many advantages of the larger caliber out weigh the few of the smaller, thus I think P.O Ackley's statement stands in some regards particularly as it relates to energy and recoil.</p></blockquote><p></p>
[QUOTE="Paladin300, post: 2182996, member: 115299"] The absolute truth and thus ,proper and better quote for LRH purposes is this, “When shooting bullets with similar SDs at similar velocities the advantage always goes to the larger caliber.“ Similarly, “when shooting bullets of identical weight at identical velocities in identical guns the larger caliber will recoil less.” It could also be argued that the larger caliber offers more versatility for the simple fact that it offers a larger range of projectile weights. The larger projectile will also carry more energy when shooting bullets of equal SDs. It really is a matter of simple physics. The smaller caliber’s only advantage is recoil when shooting a lighter weight bullet. You also gain some advantages in bc when shooting equal weights but that is quickly lost when SD is the same. The larger bullet will deliver more efficient terminal results in this case. The 7mm will shoot a little flatter but the 30 will deliver more energy and a larger wound cavity. The smaller caliber shooting similar weights and velocities, all other things being equal, will also have a significant reduction in barrel life. Again, all things being equal, I think the many advantages of the larger caliber out weigh the few of the smaller, thus I think P.O Ackley’s statement stands in some regards particularly as it relates to energy and recoil. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm or 30 cal? Just for curiosity’s sake
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