【How-to】What caliber is an elephant rifle

50-cal rifles, and has energy between about 13,250 ft/lbs to about 14,900 ft/lbs. The . 375 H&H Mag, in contrast, has 4,100 to 4,300 ft/lbs, and thus is significantly weaker. The world’s largest cartridge is arguably in the “elephant gun” range, though I don’t know if it’s marketed as such.