Sierra 10mm 180gr JHP

Sierra 10mm 180gr JHP

The Sierra 10mm 180gr JHP is a premium component bullet from Sierra’s Sports Master line, designed for handloaders and defensive shooters seeking reliable expansion, heavy-for-caliber performance, and consistent accuracy in 10mm Auto platforms. Featuring a .400‑inch diameter and a robust 180‑grain jacketed hollow point profile, this bullet excels in both self-defense and hunting applications.

Constructed with a thick copper alloy jacket swaged over a lead core, the 10mm 180gr JHP delivers controlled expansion at typical defensive velocities (1,000–1,250 fps), while its heavier weight ensures deep penetration with substantial weight retention. The hollow-point cavity facilitates rapid expansion, reducing over-penetration and improving terminal effectiveness.

Manufactured to precise component tolerances—180.0 grains, 0.400″ diameter, and a sectional density near 0.224—the bullet exhibits tight concentricity, uniform jacket thickness, and consistent meplat alignment. These attributes support smooth chambering and reliable cycling in pistols such as Glock®, SIG Sauer, and Colt 1911, as well as 10mm-capable pistol-caliber carbines.

Optimized for barrels with twist rates from 1:16 to 1:18, the 180gr JHP delivers sub‑MOA accuracy in both compact defensive pistols and full-sized platforms. Its heavier profile compared to 150gr loads moderates recoil while ensuring terminal power, making it suitable for both home-defense and outdoor use on medium game.

As a component bullet, the Sierra 10mm 180gr JHP provides handloaders full control over powder selection, primer type, and seating depth—allowing load development tailored to recoil management, expansion, and target performance. It is not factory-loaded ammunition but a match-grade component for those customizing 10mm loads.