Saw a little Ruger American Ranch in the Hardware store in Plentywood the other day.
Neat little truck gun 16.5 inch barrel. AR type mag. Threaded barrel;
The fellow showed me the cartridge, long bullet, about the length of a .223 case but a little bigger around.
I could see where it would probably be a flat shooting son of a gun,
Living where I do and not reloading i seem to lean towards the old standby's >223,.243, 270, ect.
The ones you can pick up at the local coop