I went to the range Friday to sight in my new Bushnell RX100, red dot sight mounted on a Ruger MKIII. Earlier, I asked for recommendations for a Red Dot sight, most were out of my price range. I decided on a Bushnell RX100, 4 moa red dot. They reviews were not good, but most were from people that had put the sight on pistol slides on 9mm etc. pistols. I was going to put the sight on a Ruger MK III where the slide doesn't move. Anyways, I mounted the sight on a Ruger Picatinny rail, I put the sight on most rearward spot, easy installation. I went to the range and sighted in the pistol at 17 yds. The first two shots were pefect elevation, but a little to the left, after a couple of clicks to the right everything was good. I removed the sight and double checked to see if my iron sight were still on the spot, and they were. I remounted the red dot, torqued to 14 in. lb. at shot it two times, I had to adjust the windage a couple of clicks and it was right on target. I shot about 200 rds of 22 cal. and all was good. I will have to see if this Bushnell Red Dot holds up.