The Boss SxS Sidelock in 28 gauge is among the rarest of all Boss productions and is typically ordered as the third gun in a matched 12, 20, 28 set. Built on a dedicated 28-bore frame with the same quality standards as the 12 and 20-bore guns, the Boss 28-bore SxS is a masterpiece of miniaturized London sidelock work. Boss's patent single trigger operates identically in this smaller bore as in the 12-bore. Type: Shotgun Action: SxS Caliber: 28 Gauge Capacity: 2 Year introduced: 1910, United Kingdom Weight: 62 oz Overall length: 43" Status: Active Intended use: Upland