Sierra 284 Cal 7mm 183gr HPBT MatchKing

Sierra 284 Cal 7mm 183gr HPBT MatchKing

The Sierra 284 Cal 7mm 183gr HPBT MatchKing is a match-grade component bullet in Sierra’s esteemed MatchKing lineup, meticulously engineered for long-range precision, competitive accuracy, and aerodynamic excellence in 7mm-caliber rifles. Featuring a .284‑inch diameter and a 183‑grain hollow-point Spitzer boat-tail design, it provides exceptional flight stability and consistent downrange performance.

Boasting a finely contoured Spitzer hollow-point meplat and tapered boat-tail base, this 183 gr MatchKing achieves a G1 ballistic coefficient near 0.530. The high BC reduces drag and wind drift, allowing sustained supersonic flight and flatter trajectories at extended distances. Ideal for cartridges like 7mm-08 Remington, 7mm Remington Magnum, and 7mm PRC, it suits competitive, hunting, and tactical applications.

Manufactured to exacting component tolerances—183.0 grains weight, 0.284″ diameter, approximately 1.165″ overall length, and a sectional density of ~0.312—the Sierra 183gr HPBT MatchKing features uniform jacket thickness, precise meplat alignment, and concentric boat-tail geometry. These attributes support exceptional concentricity, stable chamber pressures, and tight grouping performance.

Optimized for barrels with twist rates between 1:9 and 1:10, this bullet delivers consistent sub‑½‑MOA accuracy in bolt-action and precision semi-auto platforms. Handloaders achieve reliable groupings and minimal vertical spread, aided by its hollow-point cavity and Spitzer boat-tail design promoting aerodynamic efficiency.

As a component bullet, the Sierra 284 Cal 7mm 183gr HPBT MatchKing gives reloaders full control over powder, primer, and seating depth—enabling tailored load development for trajectory, recoil management, and terminal performance. It is intended for precision shooters and is not factory-loaded ammunition.