Gamebore Mammoth Magnum





Mammoth 3″ cartridges are loaded with large sizes of lead shot. These are high performance loads for shooting geese (where permitted) and have extremely high knock down power, they are capable of clean kills at 90yds. These loads feature high performance double based propellant powder from the USA. The case length is 76mm. Velocity MPS V1 is 406 and Muzzle Velocity FPS is 1400.

Please note: Cartridges can only be collected from our Banbury Showroom on production of an original and valid shotgun license.
  • Comes in pack of 10 cartridges
  • Large sizes of lead shot
  • High performance loads
  • Clean kills at 90yds
  • Case length is 76mm
  • Velocity MPS V1 is 406
  • Muzzle Velocity FPS is 1400


Due to current UK laws, you have to be 18 years or older to purchase ANY firearm. Guns CANNOT be delivered to your home address and must be collected from either our William Powell showroom or from a 3rd party registered firearms dealer*. When collecting your gun, please provide a valid form of identification and your shotgun certificate. If you require more information please call us on 01295 661035. A 3rd party dealer will charge a small handling fee, but this will be discussed when a member of staff calls you to confirm your order and collection.

Finance: William Powell Ltd is an Introducer Appointed Representative of Ideal Sales Solutions Ltd, t/a Ideal4Finance. Ideal Sales Solutions is a credit broker and not a lender (FRN 703401). Finance available subject to status. The rate offered is always provisional and will depend upon your personal circumstances, the loan amount and the term.

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