It's very very difficult to print MOA with a muzzleloader. It's tough finding a centerfire rifle that prints MOA consistantly. With a muzzleloader even the new inlines with saboted or belted bullets and special powders, shot to shot consistancy is the problem. You can shoot 1MOA groups I've shot several under 1" but your next 5 shot group may be 2-2.5" With a good scoped gun and loose powder you can hold the 1-2" groups with no problem if you put in the time to find the charge your gun likes.