50 bmg primers (CCI Primers) are continuously tested and improved. As a result today’s CCI primers are more sensitive, easier to seat and more compatible with progressive and automated loading equipment than ever before. They utilize modern non-corrosive and non-mercuric initiator mixes for the cleanest burn possible.
The massive 50 caliber BMG cartridge has successfully made the move to the sporting arena as a long-range target cartridge. Surplus cases and bullets are relatively plentiful, but the big primer was harder to find. CCI came to the rescue with the 50 cal designed expressly for the 50 BMG and gives the power needed to ignite the massive propellant charges this cartridge requires.