Sierra 284 Cal 7mm 160gr SBT GameKing

Sierra 284 Cal 7mm 160gr SBT GameKing

The Sierra 284 Cal 7mm 160gr SBT GameKing is a high-performance component bullet engineered for long-range hunting and precision handloading in 7mm-caliber rifles. As part of Sierra’s GameKing lineup, this .284-inch, 160-grain Spitzer boat-tail bullet delivers match-grade accuracy, aerodynamic excellence, and deep terminal performance on medium to large game.

Featuring a streamlined Spitzer ogive and tapered boat-tail base, the 284 Cal 7mm 160gr SBT achieves a G1 ballistic coefficient of approximately 0.530. This superior BC supports flatter trajectories, reduced wind drift, and sustained supersonic flight at extended ranges. Its .284″ diameter is compatible with popular cartridges including 7mm Remington Magnum, 7mm-08 Remington, and 7mm PRC.

Manufactured to tight factory tolerances—160.0 grains weight, 0.284″ diameter, about 1.135″ overall length, and a sectional density near 0.272—the Sierra 284 Cal 7mm 160gr SBT offers consistent concentricity, uniform jacket thickness, and precise boat-tail alignment. These features enhance flight stability and repeatable accuracy in bolt-action and precision semi-auto platforms.

Optimized for barrels with twist rates of 1:9 to 1:10, this 160gr SBT GameKing produces sub‑½‑MOA accuracy when handloaded precisely. Designed for hunting scenarios, it offers reliable energy retention and controlled expansion on game like deer, antelope, and elk, while maintaining aerodynamic efficiency.

As a component bullet, the Sierra 284 Cal 7mm 160gr SBT GameKing gives reloaders full control over powder selection, primer choice, and seating depth—enabling tailored load development for recoil management, trajectory, and terminal effect. It is not factory-loaded ammunition; rather, it is crafted for handloaders seeking match-grade performance with customization.

In summary, the Sierra 284 Cal 7mm 160gr SBT GameKing is a premium Spitzer boat-tail bullet offering aerodynamic performance, accuracy, and adaptable terminal capability. Ideal for long-range hunting and precision shooting, this component delivers consistent, high-performance results in 7mm platforms.