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Peterson Cartridge makes some of the most consistent rifle brass you can put on a reloading bench, and their 300 PRC offering is a favorite among long-range handloaders for good reason. These are unprimed, ready-to-prep cases built for the 300 Precision Rifle Cartridge, the beltless magnum Hornady rolled out in 2018 that was engineered around long, heavy .30-caliber bullets and fast-twist barrels. If you're pushing something like a 225 or 230 grain projectile out past a mile, the quality of your brass matters, and this is where Peterson earns its reputation.
Peterson runs their cases on a modern production line with both automated and hand inspection, so what lands on your bench is dimensionally consistent lot to lot. The 300 PRC uses a .532" head diameter with a 30-degree shoulder and no belt, which means it headspaces off the shoulder for better concentricity and longer case life. Reloaders tend to notice tighter velocity spreads once they're running quality brass like this, and that translates directly to smaller groups when everything else is dialed in.
The 300 PRC takes a large rifle magnum primer, so plan your component selection accordingly since standard primers can give you inconsistent ignition at these pressures. Peterson brass has a reputation for a slightly softer, more compliant feel in the press, which makes first firing form-up and resizing a smooth, predictable process. With regular annealing and sensible load development, you can expect a healthy number of firings before the brass starts showing its age.
Each case arrives unprimed and unprepped, so you'll trim, chamfer, and prime to your own spec before loading. This is brass only and not loaded ammunition. Peterson's 50-count cases ship in their flip-top plastic ammo box, which doubles as handy storage once you've got your loads worked up and ready for the range.
The 300 PRC uses a large rifle magnum primer pocket. Magnum primers are the right call here since the cartridge runs at magnum pressures and standard primers can produce inconsistent ignition. Stick with a quality large rifle magnum primer when you work up your loads.
No, these are unprimed and unprepped cases, not loaded ammunition. You'll want to inspect, trim to length, chamfer and deburr, and prime them to your own specification before loading. That's standard practice for any new precision brass.
With careful load development and regular annealing, Peterson 300 PRC cases typically deliver a solid run of firings before showing fatigue, often in the ten-plus range under normal conditions. Keeping charges sensible and annealing on a schedule goes a long way toward stretching case life. Since the 300 PRC operates at magnum pressures, watch your pressure signs as you go.
Peterson builds match-grade brass with tight dimensional consistency thanks to automated and hand inspection on every lot. The cases have a slightly softer, more compliant feel that makes first-firing form-up and resizing smooth and predictable in the press. For reloaders processing batches and chasing low velocity spreads, it's an easy brass to work with.
| UPC | 810068270105 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 40061-R |
| Quantity | 50 |
| Shipping Weight | 2.4 |
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