I finaly got around to having my Stiller TAC30 buid completed and I noticed that the bolt is stiff to close on an empty chamber. Upon inspecting the bolt, I noticed several places where the bolt shows contact and has obvious signs of wear. I haven't fired a round out of it yet. Is this normal for this action? I'm thinking either the tolerances are either too loose on the bolt or the action is too tight. Has anyone else encountered this? Here's some pictures to help give you a better idea as to what I'm seeing.