dont care what kind, modern or very old or replica, tell us about your 45/70. i have a stevens 44/1/2 with a gain twist barrel from smith out of canada. i shoot paperpatched bullets and it is a tack driver and fun to shoot. what do you have and what do you shoot in it. 50/70s are allowed to be talked about here also as well as 40/90s and others. straight cartridges that are fun to shoot. nothing better to reload than a straight case cartridge.