Shot this 3 shot group at a match at our local gun club last weekend. The red dot in the center measures 10mm diameter. Won the match with it too. Ruger 10/22 with Butler Creek Heavy Barrell, BSA Deerhunter 6-24X50 AO, Boyds thumbhole stock, Chasers skull mag release, Eley Club Extra 40 gn RN. 100 feet from the bench to target.