Hi all. I've been experiencing a problem with my rifle. When I first got it I cleaned the metal parts with mineral spirits and the wood with Dawn Power Dissolver. The first time I fired it (Brown Bear ammo) I had zero problems. The last two times I fired it (Russian surplus ammo) the trigger was sticking. I don't have the sticky bolt problem, just sticky trigger. I lubed the bottom of the bolt where it meets the trigger but still have the problem, but only when the rifle is hot. Do you think I missed some cosmo in there?