08-02-2011, 12:15 AM
Ok, so I took the Grendel to the range saturday to try it out. Ran my upper on my lower with my Spike's buffer, a lower with a standard carbine buffer, and another lower with an A2 stock and buffer. Nothing seemed to affect my ejection issues. Tore into the rifle on sunday. Checked my gas block alignment. It was slightly too far back, but I could tell from the carbon staining around the gas port that none of the port was blocked by the gas block. I did properly align it while I was there though. Also, checked into my extractor a little closer. Found that it seemed to hang on to a case a little too well after the ejector had done it's part. I filed and reshaped a couple of burrs on the outer edges of the radius of the extractor. Another trip to the range showed a marked improvement. All of the brass is now clearing the bench and headed in the 2:00 direction. I have a new Wolff extra power buffer spring on the way from Midway, so we will see if I can possibly move that more towards 3:00. Making progress at least.