Small Rifle Primers

Small rifle primers are used in a variety of low-caliber, typically high-velocity cartridges. A particularly frequent use of these is the 5.56 NATO/.223 Remington; other notable cartridges using SR primers include the .22 Hornet, .30 Carbine, and 5.7x28mm as well as alternative AR-15 chamberings such as the .300 AAC and 6.5mm Grendel. Check out our in-stock CCI and Winchester small rifle primers for sale; they're fairly cheap yet extremely reliable and a great choice for the typical reloader.


SR primers typically measure .175" (4.45mm) in diameter. They are taller and thicker than small pistol primers so be sure you don't use the two interchangeably.

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