[Olle]

I just got a Navy barrel for a project I'm working on, so I read postino's excellent tutorial to prepare myself for the installation. One thing that worries me a bit is that the barrel can't be hand tightened to the 1/8 turn described as "just right" in the tutorial. There's a little less than a 1/4 turn left, so do I need to trim the flange or just lean on the wrench and use my extensive vocabulary?

I don't think it would be too difficult to trim it, but from what I gather, the flange surface on these barrels should be slightly tapered to give it some "crunch". Does anybody know how many degrees of taper it needs?