I started getting pretty heavy into C&R guns, and noticed the M48A Mausers and Mosin-Nagants kick like hell. Those steel buttplates can really whack your shoulder. Since you are shooting your new 45/70, I thought I would give you a heads up on the PAST recoil system. It slips over the shoulder and straps around the chest. $28.95 from Cabelas, Inc. Worth the money, and makes the recoil SOOOO much easier to handle. I know your built differently, but the system accomadates females. I just put fourty rounds through an M-44 Carbine, and it was not much different than firing my AR-15.