Adventures with with breeching washers

[boatbod]

Did you take the opertunity to check that chamber again with the barrel out?

I looked at it with a loupe and flashlight, but to be honest it's hard to see anything specific because that only focuses at a fairly shallow depth. Where the barrel was originally short chambered it was apparently done very coarsely. If I ever see one like that again, I'd use a full finish reamer to smooth it up before setting headspace with the pull-through (which only cuts at the shoulder).