CCI Large Magnum Rifle Primer #250

The CCI Large Magnum Rifle Primer #250 is a specialized component used in the handloading and reloading of centerfire rifle ammunition. Below is a detailed overview of its specifications, characteristics, applications, and considerations:

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CCI Large Magnum Rifle Primer #250 Product Overview

• Manufacturer: CCI (Cascade Cartridge Inc.)

• Product Number: #250

• Type: Large Rifle Primer (Magnum)

• Quantity: Commonly sold in packs of 100 or 1000 primers.

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CCI Large Magnum Rifle Primer #250 Purpose and Application

The CCI Large Magnum Rifle Primer #250 is specifically designed for:

• High-performance rifle cartridges that require a hotter and longer-lasting ignition than standard primers.

• Magnum rifle cartridges such as .300 Win Mag, .338 Lapua, 7mm Rem Mag, and other high-capacity rounds with large powder volumes.

• Cold-weather conditions, where consistent ignition can be more difficult to achieve.

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Key Features

1. Hotter Ignition:

   • Delivers more flame and duration compared to standard large rifle primers.

   • Ensures complete powder burn in cartridges with a large case capacity or slow-burning powder.

2. Clean-Burning:

   • Formulated to minimize fouling, helping maintain firearm cleanliness and consistent chamber pressures.

3. Consistent Sensitivity:

   • Designed to perform reliably across a wide range of loads and conditions, including harsh weather.

   • Less prone to misfires or inconsistent ignition.

4. Enhanced Cup Strength:

   • Made with a harder primer cup to withstand the pressure from high-powered rifle cartridges.

5. Non-Corrosive and Non-Mercuric:

   • Safe for both firearms and reloaders; will not damage barrels or other metal parts over time.

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CCI Large Magnum Rifle Primer #250 Compatibility

• Intended for use with magnum rifle cartridges or standard cartridges with large powder charges.

• Not interchangeable with standard large rifle primers (#200) unless explicitly indicated by reloading data.

• Must always be used according to reputable load data (e.g., from Hodgdon, Sierra, Nosler, or official reloading manuals).

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Reloading Notes and Safety

• Always consult reloading manuals for correct powder charges when switching to or from magnum primers.

• Expect slightly increased pressures compared to standard primers—adjust loads accordingly.

• Store in a cool, dry, and secure location to maintain integrity and safety.

• Use with precision tools to ensure proper seating depth and alignment during reloading.

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Packaging and Identification

• Color-coded packaging (typically navy blue with red and white branding).

• Clearly labeled “No. 250” to distinguish it from other primer types.

• Primers themselves may have subtle color or metallic differences compared to standard variants.

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Availability

• Subject to market fluctuations and shortages, particularly during high-demand periods (e.g., political shifts, hunting seasons, or supply chain disruptions).

• Widely available through major reloading suppliers (MidwayUSA, Brownells, Sportsman’s Warehouse, etc.).

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Would you like reloading data examples or comparisons between magnum and standard large rifle primers?