Mine ran great. Sold it to get a Les Baer custom. Two tips. Take a small amount of metal polish and shine up the feed ramp. They did ok, but a few minutes of polishing will make fail safe feeding. Mine never jammed. Also, get a match barrel bushing from EGW gun works. 20 bucks some oil and 20 minutes of time to get it "fit" will tighten the groups up.