Out of stock
Weatherby Unprimed Brass Rifle Cartridges 20/Ct .378 Wby
$104.11
Weatherby Unprimed Brass Rifle Cartridges in .378 Wby give handloaders the foundation they need to craft ammunition tailored to their rifle and hunting goals. This 20-piece box of unprimed brass is manufactured to Weatherby's exacting standards, with CNC-machined primer pockets designed for consistent ignition and reliable reloading. Whether you're fine-tuning loads for big-game hunting or precision rifle work, starting with quality brass that meets strict grade specifications gives you control over every round you produce.
The manufacturing process—including the annealing that gives brass its flexibility—ensures the cases will expand and contract predictably when fired and reloaded, maintaining a secure grip on the bullet. You may notice a slight stain near the neck on some cases; this is a natural result of the annealing process and does not affect performance or safety. Before you begin reloading, plan to size, deburr, and chamfer the cases. The mouth may not be perfectly round coming out of the box due to manufacturing or handling, so these prep steps are important for consistent, safe loads.
If you're already invested in .378 Wby rifles or developing handloads for one, this Weatherby brass gives you a reliable, properly-engineered cartridge case to work with. Quality brass is half the battle in handloading consistency and case longevity—choose a product built to the same high standard as the cartridges that bear the Weatherby name.
Key Features
- CNC-machined primer pockets for consistent seating and ignition
- Annealed for proper expansion and contraction during firing and reloading
- Strict grade specifications for reliable handloading
- 20 cases per box
- Unprimed—ready for your primer seating setup
Specifications
| Cartridge | .378 Weatherby Magnum |
| Quantity | 20 pieces |
| Primer Pocket | CNC-machined |
| Condition | Unprimed |
Frequently Asked Questions
What prep work do I need to do before reloading this brass?
Before you start reloading, you'll need to size, deburr, and chamfer the cases. The mouth may not be perfectly round as it comes from the box, so these steps are important for consistent loads and safe operation.
Will the slight stain near the neck affect my reloading or performance?
No. The stain is a natural result of the annealing process used during manufacturing to give the brass its flexibility and durability. It does not affect safety or performance.
Is this brass suitable for hunting loads?
Yes. This Weatherby brass is manufactured to strict grade specifications and is popular among game hunters. The annealed construction ensures the cases will reliably hold the bullet and perform through multiple firings when properly reloaded.
What exactly is included in the 20-count box?
The box contains 20 pieces of .378 Weatherby Magnum unprimed brass with CNC-machined primer pockets, ready for you to add primers and begin your handloading process.
