On my guide gun (sold it to a friend's kid this winter) I used a Leupold mount and std rings most of the time. Seemed a little heavy but certainly rock solid!
A Warne base and Burris Zee rings seem like a good lighter weight option though I've only used that on 1894s, not 1895s.
For optics on my .45-70 ... well, I'm not much one to suffer silently, if I don't like something I change it. I twice had Leupold 1.5-5Xs on it which seemed ideal on paper but irritated me in the field and used both a 3-9X Vari X II and a 2.5-8X Vari X III at one time or another. Finally for the last year before I sold it, it had a 1.75-6X VX III on it which was, IMHO, the best of the various setups I tried.
Most of the serious load work I did with that gun was while I had the 2.5-8X on it. I got it down to under .75" center to center for 3 shots at 100 yards with 52 grains of H4895 under a 400 grain Speer flat point. That ain't too bad for a lever action.
It shot clean through a deer if you can imagine that.
My gun never responded well to higher velocities than that, didn't do very well with Hornady 350s either flat point or round nose, wasn't consistent with 300 grain hollowpoints, but it sure rocked with the 400 grain Speer.
One other thing I did ... I put a Wild West leverguns trigger in it which gave me a better trigger pull than any factory bolt action I've seen in a long time, in fact, better than some professional trigger jobs on bolt actions I've had done. Well worth the money IMHO.
Tom