Sierra 243 Cal 6mm 70gr HPBT MatchKing

Sierra 243 Cal 6mm 70gr HPBT MatchKing

The Sierra 243 Cal 6mm 70gr HPBT MatchKing is a high-performance component bullet from Sierra’s elite MatchKing series, engineered for long-range varmint work, precision target shooting, and competitive handloading. Featuring a .243‑inch diameter and a 70‑grain hollow-point Spitzer boat-tail profile, this bullet combines aerodynamic efficiency with match-grade accuracy for sub‑MOA results.

With a refined Spitzer ogive and tapered boat-tail base, the 70gr HPBT MatchKing achieves a G1 ballistic coefficient around 0.380. This superior BC reduces drag and wind drift, supporting flat trajectories and stable supersonic flight at extended ranges. Its hollow-point cavity ensures controlled expansion in varmint-sized game while maintaining consistent meplat geometry.

Manufactured to precise tolerances—70.0 grains weight, 0.243″ diameter, approximately 0.990″ overall length, and a sectional density near 0.200—the bullet exhibits uniform jacket thickness, concentric construction, and consistent boat-tail alignment. These features support repeatable pressure, reliable seating, and tight group performance across carefully tuned rifles.

Optimized for barrels with twist rates between 1:9 and 1:10, the Sierra 243 Cal 6mm 70gr HPBT MatchKing delivers sub‑½‑MOA accuracy in both bolt-action and precision semi-auto platforms. Shooters report exceptional shot placement with quality brass and match primers, backed by wind-resistant trajectories and dependable terminal performance.

As a component bullet, the Sierra 243 Cal 6mm 70gr HPBT MatchKing offers reloaders full control over load variables—powder choice, primer pairing, and seating depth—enabling tailored development for recoil characteristics, trajectory optimization, and terminal effect. It is not factory-loaded ammunition but a premium Spitzer component crafted for serious shooters.