.012 off the face is excessive and unlikely the result of fair wear and tear! My concern would be that the action may have been bent [over stressed by the use of inappropriate ammunition.]Recommend for safety reasons that you check the action for cracks in particular at the corner junction of the water table and the vertical breech face and the barrel lumps; prior to undertaking any other work.

Last edited by Roy Hebbes; 08/13/12 07:32 PM.
Roy Hebbes