I put a Bushnell Trophy TRS 25 on my M1 just after last spring. Have put a bunch of hevi loads down range with it and no issues!! Has keep point of impact, small, light and not going to be a pain to hual around on my turkey gun. Have used the same model on a cross bow for 3 years now....no problem..Only concern is that warranty is only one year. So far so good,,,,will repost after I get done traveling this spring....