When you compare even the 375 h&H to the 45/70 it has to take a back seat, the bullet weight and frontal dia. give the 45/70 a decided edge in Taylor knock out...and I know the TSX crowd hate when you haul out the TKO values....because the wsms and saums only rate with other varmint calibers! oh and you can throw those metric cals in with them too!! (except for the 10,11,and 12 mm)(they are metric 45/70s)