Sierra 25 Cal 100gr SBT

Sierra 25 Cal 100gr SBT GameKing

The Sierra 25 Cal 100gr SBT GameKing is a high-performance component bullet engineered for handloaders pursuing superior long-range accuracy and deep terminal performance in varmint, predator, and mid-size game applications. As part of Sierra’s respected GameKing lineup, this .257‑inch, 100‑grain Spitzer boat-tail bullet offers match-grade consistency, high ballistic efficiency, and reliable on-target results.

Featuring a sleek Spitzer ogive and boat-tail base, the 25 Cal 100gr SBT GameKing achieves a G1 ballistic coefficient of approximately 0.425. This aerodynamic design supports flatter trajectories and reduced wind drift out to 500+ yards. Its .257″ diameter is compatible with popular cartridges including .25-06 Remington, .257 Weatherby Magnum, and .25 Creedmoor—ensuring wide application across hunting and target platforms.

Manufactured to Sierra’s exacting tolerances—100.0 grains weight, 0.257″ diameter, approximately 0.975″ overall length, and a sectional density near 0.175—the Sierra 25 Cal 100gr SBT GameKing delivers tight jacket concentricity, precise meplat control, and consistent base seating. The Spitzer boat-tail geometry enhances downrange flight stability and minimizes turbulence for clean flight paths.

Optimized for barrels with twist rates between 1:9 and 1:10, this bullet delivers sub‑½‑MOA accuracy in bolt-action and precision semi-auto rifles. Handloaders consistently report tight groupings and dependable velocity retention across varied environmental conditions. Its robust construction also supports deep penetration on medium-sized varmints and predators.

As a component bullet, the Sierra 25 Cal 100gr SBT GameKing gives reloaders full control over powder selection, primer choice, and seating depth—enabling tailored load development for trajectory, recoil, and terminal effect. It is not factory-loaded ammunition; rather, it is engineered for precision shooters seeking high-quality component performance.

In summary, the Sierra 25 Cal 100gr SBT GameKing stands out as a top-tier Spitzer boat-tail bullet that balances aerodynamic efficiency, match-grade accuracy, and reloading flexibility. Ideal for long-range target work, varmint hunting, and precision marksmanship, this 100gr SBT GameKing delivers consistent, high-performance results for selective shooters.