ES 100 semiautomatics - The Advantage of Versatility. The key to superior performance in semiautomatic shotguns is simplicity. In addition to its reliable, soft-shooting gas systems, Beretta offers other unparalleled alternatives. The rugged, mechanically operated ES 100 boasts a vertical wedged locking lug that ensures a perfect lock-up. The ES 100 semiautomatics can handle anything from 23/4” (70 mm) loads to the heaviest 3” (76 mm) magnums. Take down is easy for cleaning transportation or storage. From waterfowl to wild turkey and boar hunting, there’s a Beretta ES 100 that’s suitable for every use.   Stock mm/in Length of Pull 372/14.6 Drop at Comb 35/1.38 Drop at Heel 55/2.17   Model Caliber Chamber (mm) Chamber (in) Rib Choke Barrel Length (cm) Barrel Length (in) Weight (Kg) Weight (Lb) ES 100 Rifled Slug 12 76 3" 6x6 MC/Fixed 61/66/71 24/26/28 3.25 7.2