Sierra Bullets MatchKing .22 Cal .224 77gr HPBT w/Cannelure - 50 Count

The Sierra MatchKing #9377 is a precision .22 caliber (.224") 77 grain Hollow Point Boat Tail (HPBT) rifle bullet featuring a cannelure, offered in a 50-count box. Part of Sierra's legendary MatchKing line, this projectile is purpose-built for extreme medium to long-range competitive shooting and is the same bullet trusted by precision rifle competitors.

The 77 grain weight allows reloaders to seat to an overall length that fits standard M16 and AR-15 magazines, making it a popular choice for .223 Remington and 5.56x45mm NATO handloads. The cannelure provides a positive crimp location that delivers consistent neck tension and improved accuracy when paired with proper case preparation. The boat tail design combined with the hollow point construction yields a Ballistic Coefficient (G1) of 0.372 and a sectional density of 0.219 for flat trajectories and excellent downrange performance.

Sierra recommends a barrel twist rate of 1:7" to 1:8" or faster for optimal stabilization of this 0.224" diameter bullet. Whether you are building match-grade ammunition for service rifle competition, dialing in a precision AR-15 platform, or loading for varmint hunting, the MatchKing #9377GT delivers the consistency and accuracy that have made Sierra Bullets a staple on loading benches for decades.