I stripped and did some cleaning of the 1899 carbine I described below and took a good look at the barrel. The bore is excellent, as are the internals. However, the outside has quite a bit of pitting with some "chunks" looking like 3/32" deep (although I have no way to measure.
While it IS my decision and I put NO "burden" on anybody on the forum, but what do you think? Shoot or not shoot? Or if I shoot, just light loads?
(Again, apologies for the hasty pictures!)