Peterson Cartridge Unprimed Rifle Brass, 7mm STW Long, 50-Count

Peterson Cartridge Unprimed Rifle Brass in 7mm STW Long (Peterson part no. 40085-R) gives handloaders match-grade cases for this long-throated magnum variant. Match-grade is a standard Peterson holds throughout the entire manufacturing process, from small-batch production lines through quality control and on to the reloader’s bench. That consistency is what lets handloaders maintain tight, repeatable groups all the way to the target. Sold unprimed in a 50-count pack, this brass is ready for a reloader to prime, charge, and seat bullets to their own specifications.

Key Specifications

• Chambered for 7mm STW Long, the extended-length variant of this magnum cartridge.
• Manufactured to a match-grade standard, held consistent through small-batch production and quality control.
• Sold unprimed, giving handloaders control over primer selection.
• Packaged 50 cases per pack.
• Built with consistent case capacity, supporting repeatable pressures across a batch.

Frequently Asked Questions

Is this brass primed? No, it’s sold unprimed so you can select your own primers.

How is match-grade brass different? Peterson holds tight dimensional consistency through small-batch production and quality control, which improves load repeatability.

Buy the Peterson Cartridge Unprimed Rifle Brass, 7mm STW Long, 50-Count

Get consistent 7mm STW Long brass from Peterson Cartridge. Ships fast from our Lubbock, Texas gun shop, and browse our full reloading equipment selection.