A word of warning.Firing rifles while they are clamped into so called gun vices where they are held firmly and are not allowed to recoil normally can result in a different point of impact than holding the rifle in your hands.If you do use such a device be sure to check the point of impact by resting the rifle on sandbags and holding it in your hands.I have seen a substantial difference in point of impact depending on the rifle and the individual gun vise.