Thanks Frank for the detailed reply.
The first thing that I did after I got the gun was to have Bob rebuild my recuperator with his new springs.
At first, the Malaysian was tearing off in the middle. Last time out, Some of the Malaysian and 2011 Lake City tore off near the base the rest tore off in the middle.
So, if I do have imperfections in the chamber, what can I do. 3 of the barrels are marked with a "C" and appear to be chrome lined.,