12G Dark Storm

12G Dark Storm

Shotgun Cartridge

Ultimate performance competition 12 bore shotgun cartridge with Gamebore’s exclusive Diamond Shot

Designed for extreme sporting clay targets and FITASC, Gamebore’s 12G (12 bore) Dark Storm builds on the exceptional performance of the 28grm Dark Storm game load, delivering devastating performance and superb patterns at the longest range. 

We use only the best quality components in our 12G Dark Storm clay cartridges. 

Our top of the range propellant gives the highest performance with minimal recoil, resulting in an effective shot with added comfort for the shooter. 

12G Dark Storm is an ultra high performance clay cartridge with a muzzle velocity of 1550 feet per second. It features a nickel plated head for smooth, consistent and reliable ejection in higher performance loads. Available with plastic wad or fibre wad with Quad Seal.

The Quad Seal gives ultimate consistency and gas seal in a fibre cartridge, even in back bored guns.

Loaded with the world’s finest quality lead shot

Gamebore’s exclusive Diamond Shot is produced and perfected in-house for total quality control. Using pure British lead ingots and forged in the only working lead shot tower in the UK, our exclusive Diamond Shot is 5 x graded for perfect size and impeccable quality and purity. 

All cartridges should be stored at room temperature in a dry location. Adverse temperatures may affect performance. Do not expose to extreme temperatures.

Diamond Shot Sizes

6.5 2.5mm
7.5 2.4mm
8 2.3mm
Devastating
Knockout
Power

Velocity

Ultra high performance with a muzzle velocity of 1550 feet per second.

1550fps

Diamond Shot

Our precision shot produced here at Gamebore. Graded 5 times.

5x

Technology

Quad Seal

Quad Seal

The exclusive Quad Seal®. Delivering a level of ballistic consistency not previously achievable thanks to its revolutionary four-ring design. The Quad Seal reduces recoil, increases striking energy and is 100% environmentally friendly being fully degradable.

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Diamond Shot

Diamond Shot

Our precision lead shot is exclusive to Gamebore and produced in-house at the only working shot tower in the UK. Lead shot taken to the next level with this unique process-5x graded, then polished in a revolutionary method to produce shot of a consistency far beyond anything else available. Perfect in its sphericity and accurate, even size to deliver the ultimate in patterns. Simply put, Diamond Shot® is the highest quality lead shot in the world.

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F2 Powder

F2 Powder

This range of powders has become synonymous with outstanding performance, delivering blistering speeds at range without excessive perceived recoil. The performance of these loads simply cannot be duplicated with other powders.

CX2000 Primer

CX2000 Primer

The most highly consistent and reliable primer available. We use CX2000 Primer throughout our range of shotgun cartridges to give the shooter the utmost reliability and confidence.

HD Case

HD Case

High density polymer plastic case designed to perform in our premium, high performance range. Delivering easy loading and smooth ejection from a case made specifically for these demanding loads.

Nickel Head

Nickel Head

Nickel plated heads to give smooth, consistent and reliable ejection in higher performance loads.

Gamebore Wad System

Gamebore Wad System

Plastic wads manufactured in house to our unique designs and exacting standards. Giving consistent performance and delivering perfect patterns every time, using the very latest manufacturing equipment and the best materials available.

Fibre Wad

Fibre Wad

The highest quality, single piece, non fragmenting 100% fibre wads with no plastic components. Delivering excellent gas seals and patterns for a reliable environmentally friendly shoot.

Extended Range

Extended Range

Muzzle velocity is only part of the story - downrange energy is key to a cartridge's long range effectiveness. These cartridges are designed to deliver unsurpassed performance downrange where it matters most, giving knockdown performance others simply cannot match.

Power House Division

Power House Division

Gamebore's 'Power House' cartridges are developed using exclusive components and extensive R&D. Our ultra high performance loads are designed and developed to deliver the ultimate knockdown and velocity even at long range, representing the pinnacle in performance cartridges for those high, handsome birds.

Ultimate Performance

Ultimate Performance

Developed to ensure each component combines to give their maximum potential and deliver results which are greater than the sum of their parts - simply the cutting edge of performance cartridges.

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.

Load gms Shot Size WAD Length mm Muzzle Velocity FPS Velocity MPS V1
28 7.5, 8 Fibre 20/70 1550 440
28 6.5, 7.5, 8 Plastic 20/70 1550 440

Designed & Developed by Gamebore for Gamebore

How the Quad Seal Works

Designed and developed by our R&D division, the unique four-ring design of the Quad Seal gives four times the sealing area of a conventional plastic wad, retaining energy and giving improved performance with a smoother shoot.

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"Gamebore ammunition is something that absolutely does not compromise. The level of detail in the production of their products is unmatched in our game, and my confidence in it allows me to solely focus on putting up the best performance that I am capable of. "

Words from Pro Shot David Radulovich

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