If you use a scope on your Contender, you can expect excelent groups with your 44 barrel. I've used 2400 and had great success with cast and jacketed. At 100 yards, a 4" group is quite possible or even better with practice. At 50 yards, your shots will touch. This will also depend on how you rest your gun, how clean your barrel is and how uniform and consistent your reloading is.