PETERSON 40007-R 243 WIN 50/10
$61.24
Peterson Cartridge's .243 Winchester brass is purpose-built for handloaders who demand consistency and precision. This 50-round pack of annealed and cleaned .243 WIN cases gives you the foundation for match-grade ammunition, whether you're developing loads for target competition, long-range hunting, or precision rifle work. The .243 has earned its reputation as an accurate, low-recoil cartridge since its introduction in 1955—and Peterson's attention to case preparation means you start with brass that's ready to reload without extra steps.
The .243 Winchester was originally designed for dual duty as both a varmint and target round, and it remains popular across those disciplines. Built on a necked-down .308 Winchester case, it fires 6mm projectiles with excellent ballistic efficiency. Peterson's annealed cases take the guesswork out of case hardness, so your sizing and forming operations are more consistent. The cleaned finish speeds up your prep work and gives you visibility into case condition before you load.
These cases come packaged in a durable plastic ammo box and are available with either large rifle or small rifle primer pockets, so you can match them to your specific load specifications. For reloaders building ammunition that demands tight tolerances and shot-to-shot uniformity, Peterson brass eliminates one variable from the equation.
Key Features
- 50 cases per box, annealed and cleaned for immediate use
- Engineered from .308 Winchester parent case, necked down to 6mm
- Available in large rifle or small rifle primer pocket configuration
- Suitable for target shooting, long-range precision work, and varmint loads
- Packaged in protective plastic ammunition box
Specifications
| Cartridge | .243 Winchester |
| Quantity | 50 cases |
| Bullet Diameter | 6mm |
| Case Preparation | Annealed and cleaned |
| Primer Pocket Options | Large rifle or small rifle |
| Packaging | Durable plastic ammo box |
Frequently Asked Questions
What primer pocket do these cases have?
Peterson 40007-R .243 WIN brass is available in either large rifle or small rifle primer pocket. Choose based on your specific load recipe and the primer size your firearm is set up to use.
Do I need to prepare these cases before reloading?
No. These cases come annealed and cleaned, so they're ready to load. The annealing ensures consistent case hardness for uniform sizing, and the cleaned finish lets you inspect the brass before you begin.
What firearms use .243 Winchester brass?
The .243 Winchester is chambered in many rifles across hunting, target, and varmint platforms. Common actions include bolt-actions, semi-autos, and single-shots. Check your firearm's documentation to confirm .243 WIN compatibility.
Is .243 Winchester good for long-range shooting?
Yes. The .243 WIN is known for accuracy and low recoil, making it popular for precision rifle work and long-range target shooting. Its ballistic efficiency allows it to perform well at distance with proper bullet selection and load development.
