Sierra 284 Cal 7mm 175gr SBT

Sierra 284 Cal 7mm 175gr SBT GameKing

The Sierra 284 Cal 7mm 175gr SBT GameKing is a premium bullet component engineered for hunters and handloaders seeking superior long-range performance in medium to large game applications. Part of Sierra’s GameKing series, this .284‑inch, 175‑grain Spitzer boat-tail (SBT) bullet delivers a blend of aerodynamic efficiency, accuracy, and deep terminal penetration.

Featuring a sleek Spitzer ogive and a tapered SBT base, the 284 Cal 7mm 175gr GameKing achieves a G1 ballistic coefficient of approximately 0.495. This enhanced BC supports flatter trajectories, reduced wind drift, and stable flight through supersonic and transonic ranges. The .284″ diameter is widely compatible with cartridges such as 7mm Remington Magnum, 7mm-08 Remington, and 7mm PRC.

Manufactured to Sierra’s exacting component standards—175.0 grains weight, 0.284″ diameter, approximately 1.190″ overall length, and a sectional density around 0.295—the bullet exhibits tight concentricity, precise jacket-to-core bonding, and consistent meplat control. The boat-tail design enhances downrange consistency and reduces base drag for improved flight stability and aerodynamic retention.

Optimized for precision hunting and long-range shooting, this bullet excels in barrels with twist rates from 1:9 to 1:10, delivering sub‑½‑MOA accuracy when properly loaded in bolt-action or precision semi-auto rifles. Hunters will benefit from its reliable shot placement and deep penetration on deer, elk, and antelope-sized game.

As a component bullet, the Sierra 284 Cal 7mm 175gr SBT GameKing gives reloaders full control over powder, primer selection, and seating depth—enabling precision tailoring of performance, recoil, and trajectory. This bullet is not factory-loaded ammunition; it is intended for handloaders pursuing seamless, match-grade consistency and terminal effectiveness.

In summary, the Sierra 284 Cal 7mm 175gr SBT GameKing is a high-performance Spitzer boat-tail bullet offering aerodynamic excellence, accurate shot placement, and component-level load flexibility. Ideal for long-range hunting and precision shooting, this GameKing variant delivers reliable, high-BC performance for serious shooters.