I use the 8 inch plat method. If I can keep 5 out of 5 shots on a 8 inch plate, that is the max range for me. I can do it with a scoped hand gun at 75 yards with a steady rest, I try to keep all of my shots at a deer under 75 yards with that hand gun. With my lever gun 125 yards would be the max, after that bullets drop too much. As for varmiet rifles under 1 moa works for me.
BD