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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
.30-378 Wtby Mag vs .30-338 Lapua Mag vs .300 RUM vs .300 Jarrett
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<blockquote data-quote="Buffalobob" data-source="post: 140340" data-attributes="member: 8"><p>Running a comparison of the 7AM launching a 200 gr RBBT at 3350fps with the 300 Tomahawk and 190 Berger at 3600fps and a 30-378 Wby with a 240 SMK at 3200 fps:</p><p></p><p>We find that the 7AM arrives at 1500 yards with a velocity of 1900fps and energy of 1630 #</p><p>The 30-378 arrives at 1500 yards with a velocity of 1620 fps and energy of 1400#</p><p>The 300 Tomahawk arrives at 1500 yards with a velocity of 1600 fps and energy of 1100#</p><p></p><p>If we consider that momentum and the size of the hole is more important than energy then the 30-378 and the 7AM run neck and neck at 1500 yards in terms of killing power.</p><p></p><p>So until one moves to the really big 338's launching really big heavy projectiles and you talk about 2K distances you can do very well with the 7AM. I certainly would not hesitate to shoot a moose at 1K with it if Roy would send me the coordinates for it /ubbthreads/images/graemlins/grin.gif. </p><p></p><p>Of course one can play with bullet weights and muzzle velocities for hours and hours and shift the numbers around but the bottom line stays the same-the 7AM is a contender at 1500 yards.</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 140340, member: 8"] Running a comparison of the 7AM launching a 200 gr RBBT at 3350fps with the 300 Tomahawk and 190 Berger at 3600fps and a 30-378 Wby with a 240 SMK at 3200 fps: We find that the 7AM arrives at 1500 yards with a velocity of 1900fps and energy of 1630 # The 30-378 arrives at 1500 yards with a velocity of 1620 fps and energy of 1400# The 300 Tomahawk arrives at 1500 yards with a velocity of 1600 fps and energy of 1100# If we consider that momentum and the size of the hole is more important than energy then the 30-378 and the 7AM run neck and neck at 1500 yards in terms of killing power. So until one moves to the really big 338’s launching really big heavy projectiles and you talk about 2K distances you can do very well with the 7AM. I certainly would not hesitate to shoot a moose at 1K with it if Roy would send me the coordinates for it [img]/ubbthreads/images/graemlins/grin.gif[/img]. Of course one can play with bullet weights and muzzle velocities for hours and hours and shift the numbers around but the bottom line stays the same-the 7AM is a contender at 1500 yards. [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
.30-378 Wtby Mag vs .30-338 Lapua Mag vs .300 RUM vs .300 Jarrett
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