Sierra 338 Cal 225gr SPT

Sierra 338 Cal 225gr SPT

The Sierra 338 Cal 225gr SPT is a high-performance component bullet crafted for handloaders seeking dependable terminal performance in big-game hunting and long-range applications. Designed in Sierra’s Sports Master line, this .338‑inch, 225 grain soft-point bullet balances deep penetration, controlled expansion, and rugged reliability in magnum rifle platforms.

The soft-point (SPT) design features a tapered copper jacket with exposed lead tip, engineered to deliver predictable expansion and high weight retention. This construction ensures deep wound channels and reliable performance in tough game, such as elk, moose, and bear. The .338‑inch diameter is compatible with common cartridges like .338 Winchester Magnum, .338 Lapua Magnum, and .338 Federal.

Manufactured to exacting lead-free jacket standards—225.0 grains weight, 0.338″ diameter, around 1.355″ overall length, and a sectional density near 0.344—the Sierra 338 Cal 225gr SPT offers consistent concentricity, reliable bullet seating, and rugged jacket integrity. Its flat-tip profile aids in safe feeding and reliable chambering in bolt-action and magnum lever-action rifles.

Optimized for twist rates between 1:9 and 1:10, this component bullet delivers tight groupings and stable flight at hunting velocities typically between 2,600 and 2,800 fps. The robust soft-point tip provides controlled expansion without premature fragmentation, making it ideal for deep-penetrating big-game loads.

As a component bullet, the Sierra 338 Cal 225gr SPT gives reloaders full control over powder charge, primer choice, and seating depth—enabling tailored load development for specific game species and terrain conditions. It is not factory-loaded ammunition, but offers match-quality performance for precision handloaders.

In summary, the Sierra 338 Cal 225gr SPT is a top-tier soft-point bullet combining deep penetration, controlled expansion, and precision accuracy. A durable and reliable choice for hunters and long-range shooters who require magnum-level terminal performance and component-level load flexibility.