AAC 5.56 Ammo 77 Grain Sierra MatchKing HPBT WCannelure

king77Sierra Match King 77 Grain. A very widely used bullet in AR15's for competitions. Let us take a look at how it performs with 2 Match Rifles, and some popular loads to pareBrand: AACBullet Type: Hollow Point Boat Tail WCannelureCasing: AAC Brass-Boxer Primed, Fully Reloadable Caliber: 5.56 NATOQuantity: 20Bullet Weht: 77grBullet Ballistic Coefficient: