Product Details: CCI Small Pistol Magnum Primers #550
CCI 550 primers in stock are continuously tested and improved. As a result today’s CCI primers #550 are more sensitive, easier to seat and more compatible with progressive and automated loading equipment than ever before.
cci 550 utilize modern non-corrosive and non-mercuric initiator mixes for the cleanest burn possible. Some real-world shooting conditions require more aggressive initiation than provided by standard primers. Large cases, cold weather, and certain propellants often require a hotter primer flame and a longer burn.
CCI Magnum primers offer you that edge, plus you get all the attributes that make all CCI primers so great. Available in 1000 or 5000 count boxes.
Steveo From Georgia –
I’ve been using these to load 357 magnum, so far I haven’t ran into any issues with them!