The Gold Standard for Competition Reloaders and Tuned Actions

The Federal No. 100 Small Pistol Primer is arguably the most sought-after primer on the market for competitive pistol and revolver shooters. Famous within the reloading community for featuring a slightly more sensitive, softer brass cup than other major brands, these primers provide incredibly reliable ignition—even in highly tuned firearms running significantly lightened hammer or striker springs.

Whether you are mass-reloading 9mm Luger for IPSC/USPSA matches or dialling in the perfect .38 Special target load for a classic double-action revolver, Federal's stringent quality control ensures uniform primer compound drops. This guarantees consistent, hot ignition, tighter extreme spreads on your chronograph, and ultimately, tighter groups on the target.

Packaged in a convenient 100-count sleeve, this size is perfect for load development, testing a new batch of brass, or simply topping off your bench supply without committing to a full 1,000-round brick.

• Sensitive Cup Design: The absolute industry favourite for firearms with custom trigger jobs and lightened mainsprings, ensuring 100% detonation on light strikes.

• Uniform Ignition: Strict manufacturing tolerances provide consistent flame temperatures and volumes for incredibly steady muzzle velocities.

• Non-Corrosive Compound: Utilises a modern, non-mercuric and non-corrosive basic lead styphnate priming mixture to protect your barrel and action from rust.

• Versatile Application: The standard choice for loading popular handgun calibres, including 9mm Parabellum, .38 Special, .32 ACP, and standard-pressure .40 S&W.

• Easy-Feed Tray: The plastic internal tray is designed to safely hold the primers anvil-side-up, making it easy to flip them into a standard primer pickup tube or hand-priming tool.