Have you though about a quality red dot for hunting . Quicker on target in real field conditions and still from a rest capable for tight 100 yards groups. You might be pushing the 300+ dollars for some of the better sights but worked for me for 20 years on a 357 and now a new-er burris 135 speed dot on my 44mag.
Mount has the be drilled and tapped but a great mount- http://jackweigand.com/tngsvr.html
My dw 44 with weigand mount and buris red dot-