I picked up a Rossi Puma in .45 Colt last fall. This one has a brass receiver and a heavy, octagon 24" barrel. I loaded up 260 grain Speer bullets over a lot of 2400 powder. It does not have much felt recoil and is very accurate. Zero signs of over pressure. Mounted a nice Skinner peep sight.
[Linked Image from i.imgur.com]

Sam......