If you use a "real" slug, the .308 is way less gun, way less "lethal." Yes, the foster slugs are soft but a Dixie DGS or Brenneke Black Magic will kill anything on earth, the .308, not so much. The Linebaugh Bone Box testing shows that a hard cast slug will out out-perform a .375 H&H, let alone a .308. Even with a lesser slug, the 385 grain Winchester Gold Partition, you are far beyond any .308:
Technical Information •Gauge/Bore: 12
•Shell Length: 3"
•Slug Type: Partition Gold Sabot
•Slug Weight: 385 Grain
Ballistics Information:
•Muzzle Velocity: 2000 fps
•Muzzle Energy: 3419 ft. lbs
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