Peterson Cartridge manufactures precision rifle casings in Pittsburgh, Pennsylvania, built from the ground up for long-distance shooters who understand that consistency wins downrange. Founded by Derek Peterson and two business partners, the operation focuses on one goal: producing extremely consist...
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Full description and what we offer
Peterson Cartridge manufactures precision rifle casings in Pittsburgh, Pennsylvania, built from the ground up for long-distance shooters who understand that consistency wins downrange. Founded by Derek Peterson and two business partners, the operation focuses on one goal: producing extremely consistent, American-made brass casings that minimize the variables affecting accuracy.
Match-grade isn't just a label here—it's a manufacturing commitment. Peterson sources premium raw materials, runs state-of-the-art equipment, and implements both automated and hand-inspection processes to ensure 100% of casings meet strict quality standards.
Structural consistency is what shooters notice first. Cases withstand reload after reload without degradation. Users report 9+ reloads with no signs of wear, tight groupings from hunting loads, and the kind of reliability that matters when you've got one shot at an expensive hunt.
Peterson offers brass across the full spectrum of long-range and hunting applications:
"I am extremely impressed with the quality of the .308 SRP Peterson brass. It has been very consistent and held up through 9 reloads with no signs of case degradation." — Blake G.
Peterson's brass starts as C260 (cartridge brass) coil—copper and zinc combined with trace elements. The journey from raw coil to finished casing involves:
1. Cupping — brass coils slit and pressed into cups at high speed 2. Three draw presses — elongation with annealing between each stage 3. Pinch trim — precision-trimmed to exact length 4. Primer pocket and headstamp — formed and headed simultaneously 5. Extraction groove — cut via precision lathe operation 6. Three taper presses — body, shoulder, and neck refined to final profile 7. Trim-to-length — carbide cutters prevent burrs inside and out 8. Flash hole punching — precision drilling critical to performance 9. Mouth and neck anneal — induction annealing (not flame) for temperature control to the degree 10. Multi-stage washing — specialized acid, detergent, and anti-tarnish chemistry
Each stage is washed between processes. As Derek Peterson notes: "Drawing brass is hard, dirty, technical work."
| Inspection Stage | What's Tested |
|---|---|
| Cup Inspection | Visual imperfections, dimensions, weight, composition, grain structure, hardness |
| In-Process | Visual checks, dimensional accuracy, wall thickness, hardness, grain structure |
| Final Batch QA | Exterior dimensions, primer pocket, weight, internal volume, webbing thickness, neck concentricity, hardness, pressure testing, function testing, internal dimension dissection, residue verification |
100% Inspection Standard: Unlike many manufacturers, Peterson inspects every cartridge that leaves the factory. Not batch sampling—every single case.
Peterson provides shooters with:
Peterson is active in the shooting community:
Peterson also offers branded apparel:
"I recently purchased a 50ct box of your 6.5x47 Lapua brass. Very impressive out of the box—mouths perfectly round, no dings, beautiful cases. Undoubtedly the best rifle brass I have ever used, period." — Mike M.
"I love what the Peterson cases have produced. I've noticed the case is very tough and very consistently accurate. That's crazy accurate for a hunting rifle." — Miller K. (3-shot group: .208" at 100 yards)
"When I'm spending my hard-earned money on expensive hunts, I only use custom hand-loaded ammunition. That's why I trust Peterson brass. Sometimes you only get one shot, and I want to know I'm relying on the best equipment possible." — Tyler S.
Precision engineering with advanced manufacturing at small batch production scale equals 100% cartridge inspection. This isn't volume—it's controlled quality. Reloaders who use Peterson brass report tighter groups, longer case life, and the kind of consistency that compounds over multiple reloads.
For shooters who understand that ammunition is where accuracy begins, Peterson Cartridge delivers American-made brass built by shooters, for shooters.
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