Gamebore
GameboreMammoth Magnum Steel 3.5″ 12Ga
From £959.00 / 1000
Mammoth Magnum Steel is the ultimate wildfowl load with high velocity. This cartridge uses double based propellant exclusively imported from the USA.
High Performance Steel | 36gm 1,3,4 & 42gm BB,1,3
For HP Steel cartridges, ensure the gun is suitable for HP Steel and is stamped with a Fleur de Lys symbol. Proof House guidance suggests a maximum of half choke is used for all steel cartridges.
Click for price list
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| 42 | Plastic | 1 | £110.00 | £509.00 | £959.00 | £47.95 SAVING |
| 42 | Plastic | 3 | £110.00 | £509.00 | £959.00 | £47.95 SAVING |
| 42 | Plastic | BB | £110.00 | £509.00 | £959.00 | £47.95 SAVING |
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