I recently bought a used 45-70 barrel, and after my first trip to the range I realized it was putting two dings in each case. Examining the barrel, I found two spots where it looks like the screw holes for the scope mount were drilled all the way into the chamber. Didn't notice them when I bought it.
Aside from being annoying, is this thing safe? I absolutely love shooting this thing, I've already fired 20 Win SuperX 300 grain bullets through it, bought those waiting for my dies to arrive. But now I'm worried that two holes into the chamber might be a weak point waiting to split.
Plus I'm not sure if the distinctive dings on the brass are going become weak spots down the road, so I thought I'd stop now and start asking for advice. Am I just being paranoid?
Thanks...
DanL