I use a Pro Hunter Micro Sight (round sight with one pin coming up from the bottom, sight moves on a slide, "dial-a-prayer"). I keep it sighted in at 20 yds. Even though I have marks on it for 30, 40, 50, and 60 yardsI never move it when hunting. I practice all the time with my 20 yd pin at 10 yds, 30 yds, 40 yds, etc., rather than having to move it I just compenate for the drop. I know it's not a perfect method but it works very well for me and I've never shot a deer much past 30 yds anyway.