CCI Small Rifle Primers #400 Box of 1000

Clear Product Overview

CCI 400 Primers (Small Rifle Standard) are industry-standard reloading components engineered to deliver clean, highly consistent ignition across a broad spectrum of small rifle cartridges. As a core product in CCI’s performance lineup, these No. 400 non-corrosive, non-mercuric primers feature precision-drawn metal cups and a clean-burning priming formulation. Designed for smooth seating and reliable detonation with standard firing pin strikes, CCI #400 primers are a top choice for target shooters, high-volume reloader enthusiasts, and varmint hunters using popular semi-automatic and bolt-action platforms.

Relevant Specifications

• Brand: CCI Ammunition

• Product Line: Performance Primers Series

• Primer Type: Small Rifle Standard (No. 400)

• Quantity: Box of 1,000 (10 individual sleeve trays of 100)

• Chemical Composition: Non-Corrosive, Non-Mercuric High-Output Priming Compound

• Cup Design: Solid Precision Brass Cup

• Intended Applications: .223 Remington / 5.56x45mm NATO (standard loads), .22-250 Remington, .204 Ruger, .222 Remington, .30 Carbine, 6.5 Grendel

• Country of Origin: Made in the USA

Real-World Use Information

Whether assembling target ammunition for range day or loading varmint rounds for the field, CCI 400 Primers provide effortless feed and reliable ignition. Their precise cup dimensions seat cleanly into small rifle primer pockets using hand priming tools, bench systems, or progressive reloading setups. Moreover, the modern initiator mix burns clean to minimize fouling in flash holes and gas tubes, giving shooters consistent velocities and trouble-free operation across high-volume shooting sessions.

Compatibility & Requirements

• Cartridge Compatibility: Fits all standard small rifle primer pocket cases (.223 Rem, .204 Ruger, .22-250 Rem, 6.5 Grendel, .30 Carbine).

• Equipment Compatibility: Seats cleanly using standard hand priming tools, bench tools, and progressive press priming assemblies (Dillon, Hornady, Lee, RCBS).

• Safety Requirement: Wear safety glasses during handling, store in a cool, dry location away from heat sources, and never force a primer into an obstructed pocket.

Pros & Limitations

Pros:

• Reliable Ignition: Generates a consistent flame propagation profile for complete powder combustion.

• Smooth Progressive Feeding: Precision cup dimensions prevent jams and crushed primers in automated tube feeds.

• Clean-Burning Compound: Reduces carbon residue in flash holes and action channels.

• Non-Corrosive Chemistry: Protects precision barrels and chambers from corrosive pitting.

Limitations:

• Standard Cup Thickness: Intended for standard-pressure small rifle cartridges; for high-pressure AR-15 military loading or slam-fire sensitive floating firing pins, consider CCI #41 military primers or CCI #450 small rifle magnum primers.

• Not for Magnum Charges: Use small rifle magnum primers (#450) when loading dense spherical powders in maximum charges.

Frequently Asked Questions (FAQs)

Q: What is the difference between CCI #400 and CCI #450 primers?

A: CCI #400 is a standard small rifle primer with a standard cup thickness, whereas CCI #450 is a small rifle magnum primer with a thicker cup and hotter flame front for slow-burning ball powders and high-pressure loads.

Q: Can I use CCI 400 primers in .223 Remington / 5.56 NATO reloads?

A: Yes, CCI #400 primers are one of the most widely used options for reloading standard-pressure .223 Remington cartridges.

Q: Do CCI 400 primers come in plastic sleeve trays?

A: Yes, the 1,000-count box contains 10 individual 100-count sleeve trays designed for easy insertion into priming tools and loader tubes.

Shipping & Delivery Information

• HazMat Classification: Ships as Hazardous Material (UN0044, Primers, Cap Type) under DOT rules.

• Shipping Restrictions: Ships by ground inside the Continental United States only. Therefore, we cannot ship to P.O. Boxes, APO/FPO locations, or overseas.

• Adult Signature Required: An adult must sign for the package upon delivery.

• Final Sale: Due to federal safety rules for hazardous materials, all primer sales are final and non-returnable.

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