The 6.5 MPC (Multi Purpose Cartridge) is a SSK development urged by Brian Hormberg (USMC) based on the 5.56 cartridge shortened and opened to 6.5 MM and the same OAL as the 5.56. In the M-16-AR-15 rifles it utilizes the 5.56 bolt and magazines as well as all other parts except the barrel itself. Its design adapts it to a short Close Quarter Battle rifle with a 12” barrel moving a 107 6.5 SMK at 2400 FPS with superior full auto controllability and excellent accuracy. The 12” barrel model easily puts it into the realistic 300+ yard combat category and longer barrels stretch that realistic combat range considerably further. Factory ammunition is not yet available for the 6.5 MPC; however we are working on that. Ready to load brass and dies are in stock.   The 120 grain BT is near maximum bullet weight for good performance. 85 grain is about the least weight for good performance. Some 140 grain bullets may be used but ballistically are counterproductive.  
95 SSK Solid – – – – – – – 12″ 2600 FPS20″ 2800 FPS 110 Sierra HP – – – – – – – – – – – 12″ 2480 FPS20″ 2731 FPS 120 SMK – – – – – – – – – 12″ 2220 FPS20″ 2400 FPS
Case capacity can’t be beat when it comes to raw power.