11-16-2020, 02:02 PM
My Grendel Ruger was so rough I could barely cycle the bolt. I stoned the rough tool marks off the mill cuts in the bolt and lightly broke the sharp edges. Took me a careful hour in front of the TV but the difference was night and day. This will help with the feeding as well. The smoother bolt travel the less fighting the round off the magazine. My rifle endd up shooting very well. Ended up giving it away to a friend that liked it. I have a pair of CZ's and a Alexander-built AR anyhow...~Riuma