Nosler Brass, .300 Winchester Magnum 50ct

Nosler Brass in .300 Winchester Magnum (Nosler part no. 10227) is Factory 1st production brass, ready for a handloader to prime and load without an extra round of prep work. Nosler chamfers and deburs each case, checks it for proper alignment, and hand-inspects it against exact dimensional standards before it ships, which is the same process behind Nosler’s reputation for consistent case life. For .300 Winchester Magnum reloaders, starting with brass this consistent takes one variable out of load development.

Key Specifications

• .300 Winchester Magnum is the cartridge these cases are formed for, so they’re ready to prime and load for .300 Winchester Magnum only.
• 50 cases per box is the quantity included in this box, enough to work up and load a batch.
• Factory 1st quality means this is first-run production brass, not seconds or blemished stock.
• Chamfered and deburred at the factory, so cases are ready for bullet seating without additional prep.
• Checked for alignment as part of Nosler’s inspection process, catching cases that would otherwise feed inconsistently.
• Hand-inspected to confirm each case meets Nosler’s dimensional standards and tolerances.
• Sized and trimmed to proper length before shipping, saving a reloader that prep step on every case.
• Product classification lists this brass as rifle cases, confirming it’s built for rifle chamberings rather than handgun brass.
• Unprimed so a reloader seats their own primer of choice as part of the normal reloading sequence.

Frequently Asked Questions

Is this brass primed? No, it ships unprimed. You’ll seat your own primer of choice as part of your normal reloading process.

What does Factory 1st mean? It means this is first-run production brass rather than seconds, so it meets Nosler’s full dimensional and quality standards.

Buy the Nosler Brass, .300 Winchester Magnum 50ct

Order Nosler Brass in .300 Winchester Magnum from our Lubbock, Texas gun shop for fast, insured shipping and browse the rest of our Nosler reloading brass lineup.