cleaning the inside of the reciever? I just had it in to the gunsmith to have a firing pin replaced a few months ago, and the inside of the reciever was immaculate. could it just need some additional lube in there?

i typically keep the moving parts pretty well oiled, and it ejects snap caps no problem, nice and easy opening.

i have some slight drag marks on the primers, that is why i was concerned about the timing.