Gamebore 3" Mammoth Magnum Steel - 12Ga
Magnum Steel 3” is available with 36grams of Steel in shot sizes 1, 3 and 4. This cartridge uses double based propellant exclusively imported from the USA. This ensures Gamebore uses the latest advances in steel powder technology to offer truly High Performance steel loads.
36gms/4 (3.25mm) *High Performance. Steel Proofed Shotgun with Fleur de Lys stamp. CIP regulations state No Choke Restrictions however we strongly advise Half Choke Maximum