Well getting ready to get started on a smokeless conversion. Seems as if everyone is using the H&R which I like, but one of my question is does it have to be the H&R stainless like you see a lot of people using. I see that CVA makes a 45-70 for less green. And even if you didn't get a stainless or nickel you shouldn't have to worry about cleaning as much since its rifle powder correct? So main questions: can you use any gun style frame etc. as long as its 45-70..#2:Does it really matter stainless vs blued barrel thanks yall!!!