I have one of these on my 1895 Cowboy, 45-70

http://www.kick-killer-recoil-pads.com/kick-killer-slip-on-recoil-pad-with-lace-up-closure/

I also have about 1/2" of extra spacer hidden inside to increase my lop more. That and the way the leather on the butt end wraps around makes the pad wider than the stock buttplate,which helps to spread the recoil over a wider area and makes it hurt much less.