I've got one on my Desert Stryker. When the 20 yd cross hairs are set dead on at 20yds the 30 is a little high but 40 shoots way high. 50 is high too. When I get more time I'm going to try setting the 20 at 25yds and see how that works. I shot one the other evening at a good 33yds or so and it hit high. Wish they had adjustable points on a scope for the 30, 40 and so on. I like to be able to take shots at varmints at longer yardages it the chance presents itself. I have the ring set on 350 but mine is shooting flatter than that.