Hornady Unprimed Brass Rifle Cases, .300 Win Mag (1200-ct)

Hornady Unprimed Brass Rifle Cartridge Cases in .300 Winchester Magnum (brand part no. 8670B) ship in a bulk 1200-count box built for reloaders who go through a lot of brass. Hornady produces its cases in smaller lots to meet strict internal quality standards, giving reloaders excellent uniformity in wall thickness, weight, and internal capacity from case to case. Every lot is measured for tight wall concentricity and run through a pressure calibration test to ensure uniform case expansion during firing, so bullets seat properly in both the case and the chamber and charges stay consistent from round to round.

Key Specifications

• Chambered for .300 Winchester Magnum, a proven long-range and hunting magnum cartridge.
• Packaged in a bulk 1200-count box, suited for high-volume reloaders and clubs.
• Manufactured in smaller production lots to meet Hornady’s strict internal quality standards.
• Offers excellent uniformity in wall thickness, weight, and internal case capacity.
• Every case is measured for tight wall concentricity before shipping.
• Run through a pressure calibration test to ensure uniform case expansion during firing.

Frequently Asked Questions

Why does wall concentricity matter in brass? Tight, uniform wall concentricity helps the bullet seat straight in both the case and the chamber, which directly improves accuracy.

Is this brass primed? No, this is unprimed brass, so you’ll need to add primers as part of your normal reloading process.

Buy Hornady Unprimed Brass Rifle Cases, .300 Win Mag

Stock your bench with a full 1200-count box of Hornady’s uniform .300 Win Mag brass. Browse our complete reloading brass selection, and count on fast shipping from our Lubbock, Texas gun shop.