I would start at the 25 yard range and stay there till you get the tightest group. You'll have to experiment with different load sizes, 70 grains is a good starting point. I'd try and go up in 5 grain increments till you see what it does. I can't stress this enuff, group first, adjust sights later. A tight group is much easier to make sight adjustments with. If you have to adjust first to get on paper by all means do it. I personally try and maintain a 1/2" high zero at 50 yards.I swab my barrel every 3 shots with a alcohol soaked patch followed by a few dry ones.Hobbyson said: