RE: Anybody hunt with a 45-70?
cw, I put a Burris FullField II 1.75-5x on my 1895. It is sighted in dead on at 100, so depending on the load it can be anywhere from just a few to about 8 inches low at 150. It is a hammer, and I am accurate with it out to about 300. They key with these big bullets is to practice, to learn to play the rainbow a little bit. Those bullets are absolute anchors, and when something is hit with them you really learn the virtue of big bullets over speedy ones. At least that's how I see it. If you reload, the 45/70 is as fun as they come, and load up some black power rounds! Good luck man!
By the Way, MSRP online is quite a bit higher than what they actually go for, so if you find a good gunshop you might sneak away with one for about $410.
Other good sights are an elevator peep or a ghost ring sight, depending on what you want the gun to do.