Check the mounts/rings/scope and then once they are determined 'ok' try shooting top shelf Weatherby ammo. Contact Weatherby to check on the recommended 'inch pounds' needed to tighten the underside screws. (trigger guard and forward of the mag) This has been something that Weatherby has strongly recommended in the past and probrobly still applies. These guns can be tempermental, but once everything is secure and tightened to 'weatherby specs' IF it doesn't shoot... you'll have more to stand on when returning to the company. Eliminate variables..