Ive hunted my share of caribou and although the 45/70 wouldnt be my choice, it certainly isnt useless in the right hands. One of the best hunters I know has used an old JM Marlin for decades. Its his only rifle. I was standing right beside him one cold November day years back when he shot a nice bull at 250 yards. Just a couple of years ago I was again by his side when he killed a mountain goat at a ranged 198 yards. He does all his shooting with an old Williams aperture sight. No glass. Ive personally busted a few interior grizzlies with the 45/70 so I know anyone who says its "useless" really doesn't know what he's talking about. Personally, I prefer the 444 Marlin. It shoots a tad flatter for those longer shots..