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12G Mammoth Magnum 3.5 Steel Hevi Load

Ultimate Performance Steel 3 1/2"

Mammoth Steel 3.5” is the ultimate wildfowl load with high velocity and 1 ½ oz of large size steel shot. This load will knock down geese at 60yds.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.

Technical performance

Velocity x Distance

The following graph shows the relationship between Velocity (MPS) and Distance (M) for the shot selected from the table below.

Cartridge Load gms Shot Size WAD Length mm Muzzle Velocity FPS Velocity MPS V1
12G Mammoth Magnum 3.5 Steel Hevi Load 42 1, 3, BB Plastic 16/86 1460 425

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