Federal Rob Roberts Raptor Steel 20 Gauge 1oz 3in Shotgun Ammunition #2 25 Rounds. Federal collaborated with Rob Roberts and his team to develop these customized loads which pair heavy payloads and high shot counts with carefully selected velocities proven to put more pellets on target. The loads combine Federals high-performance primers and clean-burning propellant to deliver lethal shot strings through the advanced Raptor choke design. Specifications for Federal Rob Roberts Raptor Steel 20 Gauge 1oz 3in Shotgun Ammunition: Manufacturer: Federal Gauge: 20 Number of Rounds: 25 Shell Length: 3 in Shotgun Shot Weight: 1 oz Federal RRS2092 Rob Roberts Raptor 20Gauge 3" 1oz 2Shot 25 Per Box/10 Case Federal RRS2092: Rob Roberts Raptor Steel 20 Gauge 1oz 3in Shotgun Ammunition #2 25 Rounds