Well, I shot a shotty for the first time in many years today. I recently acquired a 590 and took it to the range and ran 10 2.75" slugs and 10 3.00" 00buckshot thru it. The slugs were a piece of cake, but dang the 00 buckshot packed a wallop. Gotta find some 2.75" buckshot! At 50 yards the Mossberg was quite accurate with the slugs.