12G Black Gold Game UER Shotgun Cartridge

The latest addition to Gamebore’s Powerhouse Division; Black Gold Game UER, incorporating the most technologically advanced components we’ve ever developed.

Our R&D team have worked tirelessly to improve upon our original Black Gold Game loads, carefully dissecting and analysing every last detail to identify qualities that could be enhanced further still, accomplishing a level of performance never achieved before.

Our aim? To maximise downrange speed and effectiveness without excessive pressures and recoil.

The density of our full-cup next generation Bio-Wad makes it more stable in flight and allows it to travel even further with the shot still enclosed. It is 2.5x heavier than the equivalent plastic wad, resulting in a prolonged drop-off point, creating tighter patterns at extended range. Engineered to replicate the performance and low-residue characteristics of a high-density plastic wad, while remaining fully biodegradable. Its flexible crush zone generates improved shock absorption to reduce the impact on the shoulder, allowing you to shoot for longer, experiencing less fatigue.  

The next generation Bio-Wad incorporates Quad Seal technology - our exclusive, four-ring gas seal for improved overall ballistic consistency, reduced recoil and increased striking energy. 

Introduced across the Black Gold Game UER range for the 2026 game season and beyond, the next generation Bio-Wad combines enhanced performance with responsible environmental credentials. Manufactured from a more advanced biodegradable material, it produces the low-level barrel residue typically seen with a plastic wad, whilst biodegrading naturally in the field at a rate comparable to a traditional fibre wad. The result is an overall shooting experience that replicates the characteristics of a plastic wad, without compromising on sustainability.

Advancing the Lead pellet yet another level, with added antimony and graded even further than our renowned Diamond Shot in our purpose built, on-site grading facility. Diamond Shot Xtra is British lead, processed, perfected and refined here at Gamebore to produce the optimum in both sphericity and aero-dynamicity, in every pellet.

Our custom blended double base RS Propellant gives the highest performance possible, whilst remaining comfortable for the shooter.

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

Specialist Cleaning Instructions for Pre-2026 stock: Using a bronze wire brush, remove the excess wad residue whilst dry. Next, spray a mild, water-based household cleaning product such as glass cleaner down the barrels and leave for a few minutes to allow the breakdown of any stubborn residue. Use the bronze wire brush again to remove any remaining streaks, followed by a rag or dry tissue to wipe away the remaining cleaning product. Dry the barrels thoroughly before applying a gun oil.

As with any type of cartridge; barrels and chokes should be cleaned after each use to avoid build-up of residue.