The Weatherby Orion I 20ga is the 20-gauge version of Weatherby's Miroku-built O/U. Walnut stock, boxlock action, ventilated rib, and chrome-lined chambers. The 20-gauge receiver is purpose-built for the gauge rather than a modified 12-gauge casting. Type: Shotgun Action: Semi-Automatic Caliber: 20 Gauge Capacity: 2 Year introduced: 1985, Japan Weight: 102.4 oz Overall length: 42.5" Status: Active Intended use: Hunting, Sport Shooting