I have one on my TC .50 cal ML barrel. Works just dandy. Light transmission is fantastic, eye relief is great at around 5 inches, reticle adjustments are spot on and very positive clicks, it holds adjustments well. Once I got the scope sighted in at 50yds I went to work on calculating the BDC points out to 200. Was fairly easy to do. You will find it to be 10 times the scope that old Redfield is.