I have two of them. One on a Handi .17 HMR and one on a Handi .223. Have had no problems with either of them. Not sure I would like it on a deer rifle because of the AO. You can really tell a lot of difference in clarity when the AO is not set at the target distance. I wonder if this is a special scope made for Wal Mart since the Bushnell site doesn't list a 4 x 12 x 40 AO until you get up to the Trophy line. I have 7 Bushnells including Sportsman, Banner, Trophy, and Elite 3200 and never a problem with any of them. Good luck with the deer.