I shoot a Contender with 223, 357 Max, 45/410, and 45-70 barrels. They are all 15" barrels except the 410 barrel. I use a 2 handed grip, shoot off of a rifle rest or pillow. 223 and 357 Max will all shoot MOA. Also have a Encore with 7mm-08 and 460 S&W 15" barrels, really have too grasp them firmly. Good hunting rounds, but not something I would plink or target shoot with..... :lol: