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Peterson Cartridge built its name on brass that holds its own against the best in the world, and this .243 Winchester offering is no exception. These are new, unprimed cases set up for large rifle primers and packed 50 to a box, giving reloaders a clean, consistent foundation for everything from varmint loads to long range target work. The .243 Win has been a favorite since 1955 thanks to its flat trajectory and mild recoil, and quality brass is where an accurate load starts.
Peterson is a family-owned maker out of Pittsburgh, Pennsylvania, and their whole focus is small-batch, match-grade brass aimed at long-distance precision. The cases run through tight quality control for consistent wall thickness, concentricity, and weight, which translates to more uniform case capacity across the box. For reloaders chasing low velocity spread and repeatable groups, that kind of uniformity does a lot of the heavy lifting before you ever touch the powder measure.
The .243 Winchester is a necked-down .308 case running 6mm projectiles, so it feeds a wide range of bullet weights for both lighter varmint work and heavier target bullets. This version uses a large rifle primer pocket, so make sure your components match. As with any new brass, a lot of folks like to chamfer, deburr, and run a light pass before the first firing, then let the cases fire-form to their chamber. Peterson brass has a reputation among precision crowds for tight primer pockets that hold up well across multiple firings, which stretches the value of each case over its life on the bench.
If you shoot a .243 Win for varmints, deer, or paper, this is brass worth building a load around. It arrives clean and ready to prep, and the match-grade reputation means you can focus on tuning your load instead of sorting out inconsistent cases.
No, these cases ship new and unprimed. You will need to supply your own large rifle primers along with powder and bullets to assemble a loaded round. This gives you full control over your component selection and load workup.
This version is configured for large rifle primers. Peterson also makes a small rifle primer variant of their .243 Win brass, so double-check that your primers match the large pocket before you start loading.
Peterson brass arrives clean and ready to go, but most reloaders still like to chamfer and deburr the case mouths and run a light inspection pass before the first firing. From there, the cases will fire-form to your chamber. It is a quick step that helps your first loads seat smoothly.
Yes. Peterson is a match-grade maker focused on consistency in wall thickness, concentricity, and weight, which is exactly what precision and long range shooters look for. The uniform case capacity helps keep velocity spreads tight when you tune a load.
| UPC | 859449006407 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 40007-R |
| Quantity | 50 |
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