theres the problem,the lock doesn't have much wiggle room.After squaring up the rear of the barrel channel the barrel still needed to go back farther as not to end up with a gap in the rear of the tang.Things appear to be OK but was worried about the touch hole being to far forward.Like I said before if I was going to end up with a gap I would have it in the rear of the tang,I could pound it out a little and gain the little metal needed to tighten it up.Things should be fine.