CCI Large Rifle Magnum Primers

They utilize modern non-corrosive and non-mercuric initiator mixes for the cleanest burn possible. Essentially a magnum primer burns with more intensity than a standard LR primer. They are intended for use in a larger case burning more powder (generally known as magnum cartridges, but not always). If you use a standard LR primer in a magnum case you MAY get inconstant ignition of the powder. Winchester WLR – This is said to be the hottest non-magnum primer, and is hard enough to be used in semi-autos. (Sometimes refered to as Winchester LR 8 1/2) CCI BR-2 – The “match” version of 200 ,Remington 9 1/2 Primers in Stock Large Rifle Magnum Box of 1000 (10 Trays of 100) 

CCI Large Rifle Magnum Primers

Without a primer, a cartridge is so much scrap metal. Richard Speer founded CCI to provide a steady source of component.

CCI Large Rifle Magnum Primers

Easier to seat and more compatible with progressive and automated loading.