Wednesday, December 15, 2010

Available Big Bore Calibers

Cost Effective Rifle Cartridges Part 19: Available Big Bore Cartridge Chamberings

Surprisingly, the big bore category shows more life than the medium bores. The two outstanding leaders in the category are the venerable 45-70 Government, introduced in 1873, and the only slightly less respectable 375 H&H Magnum, introduced in 1912 by Holland & Holland, as part of the Nitro Express family. While the 45-70's popularity remains stable, the 375 H&H is seeing a boom in new chamberings, along with, at a much lower level of availability, several other cartridges in the category.

Among the others, many cartridges see more new chambering introductions, although none to a level where availability becomes good enough for us to recommend them. The 458 Winchester Magnum leads the pack with 11 new chamberings available at Bud's, followed by the Marlin 444 with 10, the expensive 416 Rigby with 9, and the 405 Winchester with 8. The attractive 375 Ruger, the 450 Marlin, the legendary 458 Lott, the "ultimate" 460 Weatherby Magnum (there is a larger Weatherby caliber though...), and the powerful 470 Nitro Express do not see significant new chambering activity.

Most available bog bores: 45-70 Government, 375 H&H Magnum
Most available big bore for US game: 45-70 Government
Most available big bore for any game: 375 H&H Magnum 

Next we summarize our conclusions across all chamberings... So come back soon!

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