Sure, I own one, but have not shot it, due to the fact that one of the extractor-plate springs is broken, and its' screw is missing, thus the mechanism operates sluggishly. Bore is very fine, though, which is NOT a given, considering the ammo then in use.

Have you ever had yours completely apart? I know I'm going to have to pull the barrel to repair the "device", and am not really set up to do that yet. Any thoughts?