Here's a photo of the bottom of the barrel. The barrel is really close to a SMLE but when I put one next to it just not exactly the same. At this point I'm leaning to a rebore and a set of NECG Express sights. Hard to know how far to go with this thing. It's been really neglected but has good bones. I feel like the least I can do is get it back into functional condition. Then maybe do some pig hunting!