$500 gun, 60c a shot shells, short range,low power, slow repeat hits, not much accuracy, etc.. Either save the money by getting a $150 used pump 12 ga, with rifle sights, or spend the same money you wasted on 45-70, get a used, alloy framed BAR in 308, and save 40c a shot and have 2-3x the effective range, twice as fast repeat hits, BOSS compensator, considerably less recoil, threaded muzzle, etc. The BAR will be a lOT easier to resell,closer to what you paid for it, than any 45-70 will, too. It's not as hard to find a sucker for 308 auto as it is to find a sucker for 45-70. 12 ga pump and slugs comes close enough to 45-70 performance, along with bird and buckshot uses, to make it at LEAST as "good" a choice as 45-70. All you have to do is remove the 12 ga recoil pad and use magnum shells, if you are just feeling masochistic, ya know.