The MC1sc is well polished from the factory, but I've had a few failures to return to battery. I'm considering it to be part of the break-in. Shooting 124 gr and it is getting better. Took it apart and polished it some more just for fun, also lined up the rear sight. No complaints, but since I've seen no action on this forum since I joined, thought I'd throw something out there to see if there is anybody besides the crickets.