RC Cartridge RC2 Competition 12 Gauge 1oz 2 3/4in Shotgun Ammo 1220 #8 250 Rounds. This RC Cartridge Ammunition features 8 7.5 shotgun shells that deliver strong stopping power superior accuracy and predictability for competition. With premium plastic shotgun shells . Buy now to get 2 3/4 in shotgun shells delivered right to your door. With incredible savings on Ammunition and other superior shotgun ammo from trusted brands like RC Cartridge you re sure to find the perfect firepower for your next hunting trip or range visit. Stock up today to save big on shells and other top-tier tactical hunting and outdoor gear at OpticsPlanet. What is RC Cartridge RC2 Competition 12 Gauge 1oz 2 3/4'' 1220 Shotgun Ammunition good for? The manufacturer thinks that it is suitable for competition.RC Cartridge RC21H8: RC2 Competition 12 Gauge 1oz 2 3/4in Shotgun Ammo 1220 #8 250 Rounds