Been down the road with two 1910 280s both had black hole bores.
Now finally a nice 1905 with an excellent bore, at a reasonably prices as well.
Now the fun part, no rear receiver ring make a scope tricky. Thinking in my stash of G&H mounts I might find something.
Take a peek, it will be up for a few more days.
https://www.gunauction.com/buy/17232783