CCI Large Pistol Magnum Primers 350 – Box of 1000 (10 Trays of 100) – Bulk Primers for High-Volume Reloading

CCI 350 Large Pistol Magnum Primers give handloaders a proven option for heavy magnum handgun loads. For that reason, many reloaders reach for a high energy magnum spark when building near-maximum charges. Additionally, heavy charge powder ignition lights slow-burning propellants evenly. Consequently, this reliable duty caliber component performs well under sustained high-volume use. Finally, buyers who want bulk case reloading value find real savings in this box.

CCI 350 Primer Case: Specifications

• Primer type: Large pistol magnum primer, boxer-style
• Application: large pistol reloading for magnum handgun calibers
• Suited to .44 Magnum, .454 Casull, and other heavy magnum loads
• Sold as a box of 1000 (10 trays of 100) for high-volume reloading
• Compare with the Remington Large Pistol Primers #2-1/2 for a standard-pressure option

CCI 350 Primer Case: Extra Spark

Magnum charges need more than a standard primer can deliver. A high energy magnum spark ignites dense powder charges reliably across cold and warm conditions alike. Reloaders working near maximum loads notice fewer ignition-related issues.

CCI 350 Primer Case: Built for Heavy Charges

Heavy charge powder ignition matters most with slow-burning magnum propellants. CCI formulates this primer’s compound for consistent burn-off across the charge. That consistency shows up as tighter velocity spreads on the chronograph.

CCI 350 Primer Case: Duty-Grade Dependability

This reliable duty caliber component holds up to repeated use at the range and in the field. Reloaders working up loads for the CCI Large Pistol Primers #300 often keep both standard and magnum options on the shelf.

Buying in Bulk

A box of 1000 delivers real bulk case reloading value for high-volume shooters.

CCI 350 Primer Case: Frequently Asked Questions

How should I store these primers safely at home?

CCI 350 Large Pistol Magnum Primers belong in their original packaging, away from heat, sparks, and open flame. Primers are sensitive to impact and friction, so keep them in a cool, dry cabinet. The NSSF safety page offers guidance on storing reloading components.

Which cartridges typically use this primer?

CCI 350 Large Pistol Magnum Primers fit large-pistol magnum cartridges like .44 Magnum and .454 Casull. Reloaders working up loads for these cartridges sometimes also test the Winchester Large Pistol Primers #7 for comparison.

When should I choose this over a standard primer?

CCI 350 Large Pistol Magnum Primers suit charges that a standard primer may not ignite consistently. Always follow published load data rather than substituting primer types on your own. Magnum primers are not interchangeable with standard ones in every load.

What quantities are these primers sold in?

CCI 350 Large Pistol Magnum Primers ship as a box of 1000, split into 10 trays of 100 for easy handling. Liberty Anno Supply lists available pack sizes on this product page, with pricing updated regularly.

How long can I keep these primers before they go bad?

CCI 350 Large Pistol Magnum Primers remain reliable for decades when stored properly in a cool, dry, low-humidity environment. Rotating older stock to the front helps maintain consistent ignition over time.