I love the 45-70 in a contender or Encore. But back to the original post my BIL had a .375 Barrel. It was great. If you can't find brass it is easily made from 38-55 brass which is easy to get. From a 14" barrel it was launching the 220gr Hornady bullets 2100fps. Very accurate as well. I am blessed to have a ton of brass for my .375 Win rifle and tons of brass made for it out of 30-30 and 38-55.

"A quiet hit in the right place is better than a loud miss in the wrong place followed by 10 more shots on the run"

I was a handgun hunter, when handgun wasn't cool.....