Peterson 40067-P 338 Weatherby Rpm 250
$549.99
Peterson Cartridge's 40067-P brass is purpose-built for handloaders working with the .338 Weatherby Magnum, one of the most potent rifle cartridges in the field. This bulk pack of 250 cases gives you the foundation for precision reloads tailored to your .338 WBY RPM rifle—whether you're assembling long-range hunting rounds or testing loads at the bench. Peterson brass is known for consistency and durability, traits that matter when you're investing time in the reload process.
The .338 Weatherby Magnum commands respect for its velocity and energy, and that performance starts with quality brass. Each Peterson case is engineered to handle the pressures of a magnum cartridge while maintaining dimensional uniformity from round to round. That consistency translates to tighter velocity spreads and more predictable ballistics downrange, which is especially valuable when you're dialing in a load for a specific rifle.
Buying in bulk—250 cases per pack—makes sense if you're committed to the .338 WBY RPM platform. Whether you're a serious long-range hunter, a precision rifle competitor, or a handloader who values quality components, Peterson brass paired with your favorite bullets, powder, and primers gives you control over the complete reload. Store these cases properly and they'll serve you through multiple firings and reloads, making them a sound investment in your ammunition consistency.
Specifications
| Cartridge | .338 Weatherby Magnum (RPM) |
| Case Type | Rifle Brass |
| Quantity Per Pack | 250 Cases |
| Manufacturer | Peterson Cartridge |
Frequently Asked Questions
What is the .338 Weatherby Magnum, and what rifles use it?
The .338 Weatherby Magnum is a belted magnum rifle cartridge known for high velocity and energy. It is used in Weatherby rifles and custom builds chambered in .338 WBY RPM. Always verify your rifle's chamber specification before loading any ammunition or brass.
Can I reload Peterson brass multiple times?
Peterson brass is designed for handloaders and, like quality rifle brass from established manufacturers, can typically be reloaded multiple times when handled and stored properly. Inspect cases before each reload for signs of damage or excessive wear.
What else do I need to handload .338 Weatherby Magnum ammunition?
To complete a .338 WBY RPM reload, you'll need bullets, powder, primers, and reloading equipment (press, dies, scale, calipers). Peterson provides the brass foundation; the other components depend on your specific load data and rifle requirements.
Why buy in bulk?
A 250-case bulk pack reduces the per-case cost and ensures you have a consistent supply of the same brass lot for your reloads, which supports uniformity across multiple ammunition batches.
