01-28-2014, 01:28 AM
I took multiple measurements in different locations on the bolt face and it is 0.136". I must have been in a hurry yesterday. I did pull my barrel and the extension is extremely loose in the receiver. The end of the barrel will move a total of 3/16"+ back and forth and up and down. Everything I've read indicates that I should bed the extension. I thought I would true the receiver while I have it apart, but Brownells' lapping tool is on backorder. Maybe after I get these things done, my groups will tighten up even though I have a very deep chamber. Wish me luck!

