I would like to get some opinions on the best distance for zero when dialing in a 582 series Mini-30, 18" barrel with iron sights. I have a factory rear sight and a mo-reaper front sight/muzzle brake. I believe the front sight height is 1". I checked out a few ballistics calculators and 25 to 27 yards seemed like a good choice. Fairly flat from 25 to 100 yards. I am only interested in 0 out to 125 yards as far as range goes. That's about as far as these old eyes cans see and that is pushing it a bit. I usually shoot 123 grain FMJ's and SP's. Thanks in advance for any input.