Description
If you shoot a .270 Weatherby Magnum, you already know factory ammo gets pricey fast and feeding the rifle means reloading sooner or later. This Weatherby unprimed brass is the starting point for that, built by Norma Precision to match-grade specifications and sold new and unprimed so you have full control over every step of the load. Each case features CNC-machined primer pockets for consistent primer seating, which pays off when you're chasing tight groups out of a rifle this capable.
What Sets This Weatherby .270 Wby Mag Brass Apart
Norma has been the maker behind Weatherby ammunition and components for decades, and that pedigree shows up in the brass itself. The .270 Weatherby Magnum is a belted, bottleneck magnum case designed by Roy Weatherby back in 1943, and it demands quality brass that can handle high velocities and repeated firings. These cases are annealed at the factory to give the neck the right balance of hardness and flexibility, so they expand and contract properly through load cycles. You may see a bit of discoloration or a light stain near the neck from that annealing, which is normal and can be tumbled off before you load if you prefer the shiny look.
Prepping Your Weatherby Magnum Brass
Since this is new, unprimed brass, plan on running it through your usual prep before the first load. That means checking case mouths for anything slightly out of round, resizing as needed, trimming to length, chamfering, and deburring. Once it's prepped to your spec, you're free to work up loads with your preferred primers, powder, and the .277 diameter bullets this cartridge runs. For anyone building hunting rounds or fine-tuning a long-range setup, starting with quality component brass makes the whole process more predictable and keeps your velocities and group sizes consistent round to round.
Key Specifications
- Manufacturer: Weatherby
- Manufacturer Part Number (MPN): BRASS270
- UPC: 747115070237
- Caliber: .270 Weatherby Magnum
- Product Type: Unprimed Case
- Case Material: Brass
- Made By: Norma Precision
- Primer Pockets: CNC-Machined
- Condition: New, Unprimed
- Bullet Diameter: .277 in
- Case Type: Belted, Bottleneck
- Quantity: 20 Per Box
- Style: Magnum
What’s Included
- 20 new unprimed .270 Weatherby Magnum brass cases
Frequently Asked Questions
Is this Weatherby .270 Wby Mag brass primed or ready to shoot?
No, these are new unprimed cases, not loaded ammunition. You'll need to prime, charge with powder, and seat bullets as part of your own reloading process. It's a component intended for handloaders building their own rounds.
Who actually makes Weatherby brass?
Weatherby brass is produced exclusively by Norma Precision, which has been the maker behind Weatherby ammunition and components for decades. The cases are built to match-grade specifications with CNC-machined primer pockets for consistency. That long partnership is a big part of why handloaders trust this brass.
Why does my new brass have discoloration near the neck?
That faint stain or color near the case neck comes from the factory annealing process, which is completely normal. Annealing gives the neck the right hardness and flexibility to expand and contract through repeated firings. If you prefer a uniform shine, you can tumble the brass before loading to remove most or all of it.
Do I need to prep this brass before loading it?
Yes, with new component brass it's smart to inspect and prep before your first load. Check the case mouths for any that are slightly out of round, then resize, trim to length, chamfer, and deburr as needed. Prepping it to your own specs sets you up for consistent, accurate handloads.




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