Bedding is the first thing I always suspect. Try it completely free floated, and if that doesn' t help, then put a little upward pressure on the barrel with shims in the forend barrel channel. Rifles DON' T ALL SHOOT BEST free-floated!! Some require some barrel dampening with upward pressure in the forend barrel channel. However, MAKE SURE the barrel channel is NOT pressing on the barrel on one side of the barrel channel only! If it does, the barrel will tend to shoot away from this pressure point. Next, loosen your guard screws, and retighten them, front screw first, as tight as you can get it with a screw driver that fits. Next, just tighten the center screw enough so it won' t come loose, but don' t tighten it too much!! Tighten the rear guard screw to the same degree you tightened the front screw. Next, check the tightness of all scope mounting screws, and have them as tight as you can get them without stripping them or breaking off a screw head!! Now try it again! (Some rifles just have a bad barrel, the remedy for which is a new barrel!!) Bon Chance!!