My two cents,

having a Bisley hunter in 45 Colt myself, whatever scope you go with, make sure the ocular lense does not hang over the rear sight. I had a Burris 2-7X on mine in the beginning and during recoil the scope (i am assuming) flexed enough that the rear sight would dig into the scope. It made some nasty marks on the eye piece.

it did this even with the sight cranked down all of the way and what seemed like enough space that it should have been OK. It even broke the sight blade and I had to replace it!

Mine now wears a Luepold 2x that fits nicely in between the front and rear sights

"If you are going to go through all the trouble to put a hole in something, why not make it a big one?"