I sighted mine at 50Y. I sued low recoil LE slugs. I shot 5 at 25Y from a rest and adjusted. Moved to 50Y and adjusted again. Then shot a mix of Low recoil and full power. It's not a bad shooter with those sights. Minute of pie plate no problem. I hold slightly higher at 100Y and it has no problem dropping them in.
After you do that make sure you test the pattern with Buck if you are going to shoot buck thru it also.
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