PETERSON 40014-R 300 NORMA 50/10
Peterson Cartridge 300 Norma Magnum brass delivers the precision and reliability that long-range shooters demand. The 300 Norma Magnum has earned recognition in competitive and professional shooting circles as a capable magnum cartridge that bridges the gap between standard long-range rounds and heavy magnums. This is formed brass—50 pieces per box in bags of 10—ready for handloaders building match ammunition or preparing for distance work at the range.
The 300 Norma Magnum is a necked-down derivative of the 338 Norma Magnum case, chambered in .308 caliber. It was officially recognized by C.I.P. in 2012 with a maximum pressure rating of 4400 bar. The round gained significant traction after the United States Special Operations Command selected it as the Advanced Sniper Rifle Cartridge in 2016—a testament to its performance and consistency in demanding applications. For reloaders, Peterson brass means tight tolerances, uniform wall thickness, and dependable primer pockets that contribute to the kind of shot-to-shot consistency serious long-range work requires.
If you're building loads for a 300 Norma Magnum rifle or stocking up on quality brass for your reloading bench, Peterson's reputation for manufacturing control makes this a solid choice. Each box of 50 is divided into bags of 10 for convenient organization and inventory tracking. Whether you're prepping for a precision rifle match, load development, or extending your shooting season with handloaded ammunition, this brass gives you a reliable foundation.
Specifications
| Brand | Peterson Cartridge |
| Cartridge | 300 Norma Magnum |
| Caliber | .308 |
| Quantity | 50 pieces per box (packed 10 per bag) |
| C.I.P. Max Pressure | 4400 bar |
| Type | Formed rifle brass |
Frequently Asked Questions
What is the 300 Norma Magnum and who uses it?
The 300 Norma Magnum is a .308-caliber magnum cartridge based on the 338 Norma Magnum case. It was selected by United States Special Operations Command in 2016 as their Advanced Sniper Rifle Cartridge and has gained popularity among long-range precision shooters and in competitive shooting communities.
Is this ammunition or reloading brass?
This is unprimed, unfired brass cartridge cases intended for reloaders. You will need to add primers, powder, and bullets to assemble finished ammunition.
How is this brass packaged?
The box contains 50 pieces of brass divided into bags of 10, making it easy to organize and track your inventory on the reloading bench.
What pressure rating does 300 Norma Magnum brass have?
Peterson 300 Norma Magnum brass is rated to the C.I.P. standard maximum pressure of 4400 bar.

