CCI Small Rifle Magnum Primers #450 Box of 1000

Clear Product Overview

CCI 450 Primers (Small Rifle Magnum) are specifically engineered to provide the hot flame flash and durable cup strength required for high-pressure small rifle cartridges and hard-to-ignite spherical ball powders. As a flagship product in CCI’s performance reloading line, these No. 450 non-corrosive, non-mercuric primers feature extra-thick brass cups designed to withstand elevated pressures without piercing or cratering. Whether you are loading small primer pocket brass for 6.5 Creedmoor and 6mm ARC or pushing maximum velocity in AR-15 platforms, CCI #450 primers deliver rapid, uniform flame propagation across demanding shooting conditions.

Relevant Specifications

• Brand: CCI Ammunition

• Product Line: Performance Primers Series

• Primer Type: Small Rifle Magnum (No. 450)

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

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

• Cup Design: Heavy-Duty Specially Annealed Brass Cup

• Intended Applications: .223 Remington / 5.56 NATO (heavy ball powder or maximum loads), 6.5 Creedmoor (small primer pocket brass), 6mm ARC, 6.5 PRC (small pocket), .224 Valkyrie, .17 Remington, .22-250 Remington (small pocket)

• Country of Origin: Made in the USA

Real-World Use Information

When developing precision target loads or hunting ammunition using dense spherical propellants (such as Hodgdon CFE 223, BLC-2, or Winchester 748), CCI 450 Primers eliminate ignition delays and minimize velocity spreads. Their heavy cup design offers added resistance against pierced primers and slam-fires in semi-automatic rifles while seating smoothly in small rifle primer pockets using standard hand-held or press-mounted priming tools. Furthermore, the clean-burning initiator compound reduces carbon residue in flash holes and gas tubes, ensuring long-term consistency.

Compatibility & Requirements

• Cartridge Compatibility: Fits all standard small rifle primer pocket cases (.223 Rem, 6.5 Creedmoor small pocket, 6mm ARC, .224 Valkyrie).

• 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:

• Hot Thermal Flash: Sustained flame output ensures thorough ignition of dense ball and spherical powders.

• Tough Cup Thickness: Thicker cup metal prevents primer cratering and pierced cups in high-pressure cartridges.

• Smooth Progressive Feeding: Consistent cup dimensions prevent jamming in automated press primer tubes.

• Non-Corrosive Chemistry: Protects precision bores, flash holes, and gas systems from corrosive pitting.

Limitations:

• Not for Light Firearm Strikes: The thicker, tougher cup requires a solid firing pin hit and may not detonate reliably in actions with ultra-lightened trigger springs.

• Requires Load Work-Up: Substituting magnum small rifle primers for standard small rifle primers can raise chamber pressures; always reduce starting charges by 5% and work up safely.

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 thinner cup for standard pressures. CCI #450 is a small rifle magnum primer featuring a thicker cup and a hotter, longer flame flash designed for heavy powder charges and spherical propellants.

Q: Can I use CCI 450 primers in 6.5 Creedmoor small primer pocket brass?

A: Yes, CCI #450 primers are one of the most popular choices among competition shooters for small primer pocket 6.5 Creedmoor and 6mm Creedmoor brass (such as Lapua or Peterson).

Q: Are CCI 450 primers safe for AR-15 rifles?

A: Yes, their thicker cup construction provides enhanced resistance to slam-fires and cup cratering caused by floating firing pins in semi-automatic AR-15 platforms.

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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