I love my 45-70, and it shoots great as well. It hasnt (since I have owned it, got it used) seen factory ammo, nor will it. I like to reload for it and cast my own bullets. The load that I use is 12 grains of Unique under a 405 grain cast bullet. Its a pussy cat in the recoil department, and cheap to load at that.
Dont hesitate to use it during regular deer seaon, remeber, deer aint bullet proof, and you dont need an earsplittinloudenboomer mag a numb to kill one. Many a buffalo have fallen to the 45-70, so I figure that a white tail aint got a chance.