CCI Small Pistol Primers #500

Last reviewed: 2026-04-17 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.

CCI small pistol primers anchor the reload bench for shooters cycling brass through 9mm, .380 ACP, .38 Special, and dozens of other small-primer cartridges. The #500 series uses a non-corrosive, non-mercuric initiator compound that ignites faster and burns cleaner than legacy primers — leaving less residue in primer pockets and extending the interval between cleaning cycles. For progressive-press operators pushing 500+ rounds per session, that translates to fewer jams, smoother feeding, and less downtime at the toolhead.

Performance at a Glance

CCI engineers each primer lot for sensitivity within tight tolerances, ensuring consistent ignition across commercial powders from Hodgdon, Alliant, and Vihtavuori. The anvil geometry seats flush in standard small-primer pockets with minimal seating force — critical when running Dillon 650s, Hornady Lock-N-Loads, or RCBS Pro 2000s at speed. Manufactured in Lewiston, Idaho, every primer ships in moisture-resistant packaging with DOT HazMat labeling.

The #500 sits at the center of CCI’s standard primer line — neither magnum nor match-grade, but optimized for the volume shooter building practice loads, range brass, or USPSA competition ammo. When paired with load data from the Lyman 50th or Hornady 11th manuals, ignition is uniform across charge weights from 3.2 grains of Titegroup in 9mm up to 5.0 grains of Unique in .38 Special. Browse the full inventory of small pistol primers to compare magnum and match options.

Where It Shines

High-volume reloaders running progressive presses see the most benefit from the #500’s clean-burn formula. Primer pockets stay cleaner across 1000+ rounds, reducing the need for pocket swaging or reaming between reload sessions. The improved sensitivity means fewer light strikes on floating firing pins in striker-fired pistols, and the consistent cup thickness ensures uniform seating depth when the shell plate indexes. Competitive shooters loading for Production, Carry Optics, or Limited divisions rely on the #500 for match ammo that ignites the first time, every time.

Range Notes

Store primers in their original packaging, in a cool, dry location away from solvents, oils, and direct sunlight. Primers are classified as Class 1.4S explosives under DOT regulations — overnight or expedited shipping may incur additional HazMat fees. Check your carrier’s current rates before checkout. When seating, apply steady downward pressure until the anvil feet contact the pocket floor; over-seating compresses the initiator compound and can cause misfires or slam-fires. If you’re switching from Federal or Winchester primers, start at the minimum published charge and work up — ignition characteristics vary by manufacturer.