CCI No. 41 Primers – Small Rifle Military Primers for 5.56mm NATO

🔥 CCI No. 41 Primers – Small Rifle Military Primers for 5.56mm NATO

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✅ Manufacturer:

CCI – Cascade Cartridge Inc.

• A leading American primer manufacturer known for innovation, consistency, and military-grade ignition systems

• Part of the Vista Outdoor family of brands

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✅ Product Overview:

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✅ Purpose & Design Intent:

The CCI No. 41 primer was specifically designed to:

• Meet U.S. Military sensitivity specifications for 5.56 NATO loads

• Reduce the risk of slam-fires in military-style semi-automatic rifles (like the M16, AR-15, M4, etc.)

• Ensure reliable ignition under harsh conditions

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✅ Key Features:

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✅ Compatible Cartridges:

✅ Excellent in semi-auto rifles such as:

• AR-15 / M16 / M4

• Ruger Mini-14

• SCAR 16

• Bolt guns chambered in 5.56/.223

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✅ Why Use CCI No. 41 Instead of Standard Small Rifle Primers?

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✅ Best Use Cases:

• Reloading for AR-15 rifles

• High-volume training or competition loads

• Tactical or defensive ammunition

• Suppressor-friendly loads (consistent powder ignition is important)

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✅ Ignition & Powder Compatibility:

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✅ Primer Sensitivity & Slam-Fire Prevention:

Semi-auto rifles with free-floating firing pins (like AR-15s) can cause a primer to detonate unintentionally if it’s too soft or sensitive.
CCI 41 primers are designed with:

• A harder cup material

• A deliberately lower sensitivity compound

• Making them ideal for floating pin platforms

⚠️ Not recommended for low-pressure cartridges or light firing pin bolt rifles without adequate strike force.

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✅ Priming Considerations:

Seating Depth Note:
Ensure primers are fully seated below flush—this ensures reliable ignition and avoids misfires in gas guns.

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✅ Packaging Options:

• 100-count trays

• 1000-count bricks (10 sleeves of 100)

• Available in both boxed and APS strip formats

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✅ Safety Notes:

• Do not substitute CCI No. 41 with standard primers in published load data unless data calls for it

• Store in cool, dry conditions

• Always use appropriate loading data from trusted manuals (Speer, Hornady, Hodgdon, etc.)

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✅ Summary – Why Use CCI No. 41?