Sierra 338 Cal 300gr HPBT MatchKing

Sierra 338 Cal 300gr HPBT MatchKing

The Sierra 338 Cal 300gr HPBT MatchKing is a premium, match-grade component bullet engineered for precision handloading, extreme long-range shooting, and magnum-caliber applications. As part of Sierra’s renowned MatchKing line, this .338‑inch, 300‑grain hollow-point boat-tail bullet combines exceptional aerodynamic performance with unmatched accuracy and consistency, making it ideal for competitive, tactical, and ELR (Extreme Long Range) platforms.

Featuring a finely machined hollow-point meplat and tapered boat-tail base, the 338 Cal 300gr HPBT achieves a G1 ballistic coefficient around 0.780. This ultra-high BC significantly reduces drag and wind drift, enabling sustained supersonic flight and flat trajectories at distances beyond 1,500 yards. Compatible with .338 Winchester Magnum, .338 Lapua Magnum, and .338 Norma Magnum, its .338″ diameter supports widespread magnum use-cases.

Manufactured to exacting tolerances—300.0 grains weight, 0.338″ diameter, approximately 1.600″ overall length, and a sectional density near 0.442—the bullet exhibits superb jacket consistency, concentric alignment, and precise base geometry. Boat-tail design further minimizes base drag and improves flight stability under ELR conditions. Hollow-point tip provides a defined meplat, aiding in consistency during sighting and practice loads.

Optimized for twist rates between 1:9 and 1:10, the 300gr HPBT MatchKing delivers sub‑½‑MOA accuracy in well-tuned bolt-action and precision semi-auto rifles. Shooters report stable trajectories, tight groups, and high hit probability in ELR, PRS-ELR, and military-style precision shooting competitions. Its high hull consistency and ballistic performance meet the demands of extreme shooters.

As a component bullet, the Sierra 338 Cal 300gr HPBT MatchKing gives reloaders full control over powder, primer, and seating depth to match custom load signatures, muzzle velocities, and barrel harmonics. It is not factory-loaded ammunition; rather, it represents the pinnacle of component-level performance for reloaders targeting extreme range, precision, and ballistic excellence.

In summary, the Sierra 338 Cal 300gr HPBT MatchKing is a match-grade hollow-point boat-tail bullet offering unmatched BC, aerodynamic efficiency, and handloader customization. Ideal for extreme-long-range, magnum-level accuracy, and ELR competition, this 300gr MatchKing delivers elite performance for precision shooters worldwide.