I have a b-78 in 22-250, bull barrel.Have not shot it too much yet, tried a few loads ,and finally got one to about a 3/4 " 3 shot group at 100. Trigger has some creep, but not a bad pull at all. As another poster mentioned, it can be kind of tricky letting the hammer down because of scope clearance. Had another I got rid of a few years ago, it was the 1885 with octagon barrel in 7mag.I think the difference between the two is the 1885 missing the pistol grip.
Single shots have a real 'coolness factor' in my opinion!!
[Linked Image from i.imgur.com]