My American is in .270. I sighted it in at 3" high for 100yrds. POA is POI at 200, 300,& 400 yards on 18" metal discs, fast &flat. For fun at a recent turkey shoot I shot at a one quarter inch bull &still POA was POI, amazing at only 25 yards. So this little gun is flat from 25 to 400 yards of course I only know I'm hitting the 18" kill zone not where I'm hitting it. The Elk knew though ,briefly,that it did put him down At 255 yards.