Sierra 375 Cal 250gr SBT

Sierra 375 Cal 250gr SBT GameKing

The Sierra 375 Cal 250gr SBT GameKing is a precision component bullet designed for handloaders and hunters seeking magnum-level performance, long-range accuracy, and deep terminal effectiveness. Part of Sierra’s GameKing line, this .375‑inch, 250‑grain Spitzer boat-tail bullet offers superior aerodynamic efficiency, consistent shot placement, and controlled energy delivery on large game and extended-range targets.

Featuring a streamlined Spitzer ogive and tapered boat-tail base, the 375 Cal 250gr SBT achieves a G1 ballistic coefficient of approximately 0.660, minimizing drag and wind drift for flatter trajectories and reliable supersonic retention beyond 1,000 yards. Its .375″ diameter supports common magnum cartridges, including .375 H&H Magnum, .375 Ruger, and .375 Canadian, making it a versatile choice for dangerous game and precision shooting platforms.

Manufactured to tight factory tolerances—250.0 grains weight, 0.375″ diameter, approximately 1.570″ overall length, and a sectional density near 0.347—the Sierra 375 Cal 250gr SBT delivers consistent jacket thickness, concentric meplat alignment, and precise boat-tail geometry. These quality features enhance in-flight stability, improve base aerodynamics, and contribute to repeatable shot patterns in both bolt-action and magnum lever rifles.

Optimized for barrels with twist rates between 1:8 and 1:9, this bullet offers sub‑MOA accuracy when carefully handloaded. Its robust construction and deep-penetrating profile make it ideal for large game species such as elk, moose, and bear, while maintaining excellent external ballistics. Hunters report reliable performance in dense terrain and extended-range shots.

As a component bullet, the Sierra 375 Cal 250gr SBT GameKing provides reloaders full control over powder selection, primer type, and seating depth—enabling tailored load development for trajectory, recoil, and terminal power. It is not factory-loaded ammunition; rather, it is engineered for serious shooters who demand match-grade consistency and magnum-level impact from their handloaded .375-caliber rounds.

In summary, the Sierra 375 Cal 250gr SBT GameKing blends aerodynamic excellence, precision accuracy, and deep terminal capability. Ideal for dangerous-game hunting, long-range target work, and magnum custom applications, this 250gr SBT GameKing delivers performance and flexibility that serious handloaders require.