The Nosler 300 Win Mag brass 500 count bulk case delivers uncompromised consistency and extended case life for precision handloaders targeting sub-MOA long-range performance. Designed for custom handloads in .300 Winchester Magnum rifles, Nosler Custom Brass arrives fully prepped and ready to load right out of the box, eliminating hours of labor-intensive brass preparation before your reloading process even begins.
Manufactured to exacting dimensional tolerances, each piece of brass in this Nosler 300 Winchester Magnum brass bulk package is weight-sorted, chamfered, deburred, and neck-sized. The flash holes are checked for proper alignment to ensure uniform primer ignition and consistent pressure curves. Designed to withstand high-pressure magnum charges, Nosler brass offers superior wall thickness around the web and primer pocket, extending total reload cycles for high-volume precision shooters.
Whether you are comparing the 300 Win Mag Nosler brass price, searching for Nosler 10227 brass for sale, or ready to buy Nosler 300 Win Mag brass online, this 500-count master case ensures maximum lot-to-lot uniformity for your precision handloads.
Key Specifications & Features
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Ready-to-Load Out of the Box: Pre-chamfered, deburred, and neck-sized from the factory to save time during case prep.
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Weight-Sorted Uniformity: Every case is weight-sorted to minimize internal volume variance and deliver consistent muzzle velocities.
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Nosler Headstamp Quality: Stamped with the official Nosler logo and built to exact SAAMI dimensional standards.
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Extended Re-loadability: Heavy-duty web design and premium alloy construction maintain primer pocket tightness across multiple reloads.
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500-Count Bulk Packaging: Packaged as 10 individual 50-round retail boxes (500 total pieces) for easy storage and bench organization.
Technical Specifications
| Specification | Technical Details |
| Manufacturer Part Number (MPN) | 10227 |
| Caliber | .300 Winchester Magnum (.300 Win Mag) |
| Condition | Unprimed New Brass |
| Primer Size Requirement | Large Rifle Magnum (LRM) |
| Case Prep Level | Fully Prepped (Deburred, Chamfered, Weight-Sorted) |
| Material | Cartridge Brass |
| Quantity | 500 Count Case (10 Boxes of 50) |
| Usage | Precision Handloading & Long-Range Hunting |
| Quantity | 500 rounds, 1000 rounds |
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