I did polish the feed ramp, but not the inside of the barrel throat. Guess that's next. I've had the gun for about 3 years and I shot it quite a bit early on with no problems. it sat idle for about two years and a couple of months ago I dug it out and have been shooting it every few weeks. Seems like the hangups just started recently. I'll get it worked out, the gun is a joy to shoot and is definitely a keeper. I have carried it on occasion, but I need to be able to depend on it should (heaven forbid) I ever need it.