Benelli m2 , versamax, stoeger m3000, basically all copies of the benelli at lower cost. They all need port work,i have yet to see a mossberg not jam at a 3 gun. Pump shotgun isnt as fast as a semi in a sport judged by seconds. The beretta is light and fast, but aftermarket parts are just starting to trickle out the door. If your rich, the m2 with all the tti upgrades, if your not as rich the versamax with the same tti benelli parts. If your on a budget, the stoeger takes the same m2 parts with minor mods. The beretta is in the same price range as the versamax. PS the versamax shell catch is horrendous and needs the half moon mods done on it for fast loading. I just cant c myself throwing around a $3000 dollar shotgun around into barrels, for that much i could buy 2 versamax tacticals all gucci'd up. Although my ar 15 with optic has over $5000 into it now and i chuck it into barrels without mercy lol.