69-grain Sierra MatchKing (High BC)
1,530 ft-lbs
If you have searched for "223 MKV," you have likely encountered a frustrating mix of dead ends, forum speculation, or confusion with the popular Matroska video file format (MKV). However, for the ballistic purist, the .223 MKV represents something far more intriguing: a high-pressure, high-velocity wildcat cartridge or a specialized military load designed to push the limits of the .223/5.56mm platform. 223 mkv
| Feature | Standard .223 Remington | .223 MKV (Wildcat) | | :--- | :--- | :--- | | | 1.760 inches | 1.780 - 1.800 inches | | Shoulder Angle | 23 degrees | 30 - 35 degrees | | Neck Length | Standard (0.200") | Extended (0.250"+) | | Pressure Max | 55,000 psi | 68,000 psi (estimated) | | Primer Pocket | Small Rifle | Small Rifle Magnum / Reinforced | 69-grain Sierra MatchKing (High BC) 1,530 ft-lbs If