I bought a 1968 Old Model, 4 5/8 barrel. When shooting with the orig. grips, the trigger guard about gnawed off my trigger finger at the first knuckle. Switched to wider grips, no more problems. Very accurate, my hands-down favorite. For ammo, I depend on either Georgia Arms or North Georgia Reloading. They make some very dependable AND reasonable ammo that I stock up on when I hit the Gun Shows. Mostly 210 gr.