What Sets Peterson Cartridge Apart
- American-Made Specialization - Unlike manufacturers that produce bullets, powder, and brass under one roof, Peterson dedicates 100% of their facility, machinery, and laboratory to brass rifle casings. This singular focus allows them to achieve consistency that generalist manufacturers struggle to match.
- Extended Case Life - Peterson brass is engineered to withstand many reload cycles. Shooters regularly report 15 to 20+ firings from Peterson casings before seeing signs of degradation. In internal testing, Peterson fired .308 Winchester brass 32 times at SAAMI max pressure without experiencing case failure.
- Unmatched Quality Assurance - Every casing Peterson produces goes through both automated and hand inspection before shipping. This ensures uniform weight, consistent wall thickness, and properly formed flash holes across every lot.
- Minimal Prep Required - Peterson brass arrives ready to load. Flash holes are centered and deburred, case mouths are chamfered, and dimensions are consistent enough that many reloaders skip sorting entirely.
Peterson Cartridge Product Options
Large Rifle Primer (LRP) Brass
Large rifle primer brass is Peterson's standard configuration and works with most factory rifles without modification. LRP brass uses standard large rifle primers and is compatible with common reloading setups, making it ideal for hunters and shooters who want premium brass without additional equipment or rifle modifications. Peterson offers LRP options across their full range of cartridges including 6.5 Creedmoor, 6.5 PRC, .308 Winchester, .300 Win Mag, 7mm PRC, .280 Ackley Improved, and many more.
Small Rifle Primer (SRP) Brass
Small rifle primer brass is designed for competitive shooters and reloaders seeking maximum case life and consistency. The SRP configuration offers longer primer pocket life due to additional material in the case head, and many shooters report more consistent ignition and tighter velocity spreads. SRP brass does require an undersized decapping pin for reloading, and some rifles may need a bushed firing pin to prevent pierced primers. Peterson offers SRP versions of popular competition cartridges including 6.5 Creedmoor, .308 Winchester, 6mm Creedmoor, .260 Remington, .243 Winchester, and 6XC.
Long Brass for Belted Magnums
Peterson developed their "Long" brass to address a common issue with belted magnum cartridges where standard brass stretches significantly on the first firing due to excess clearance between the shoulder and chamber wall. Peterson's Long brass positions the shoulder forward to reduce this first-firing stretch, dramatically extending case life and improving consistency from the first shot. Long brass still chambers in standard rifles while providing the benefits of a more precise fit. This option is currently available for .300 Win Mag and 7mm Rem Mag.
Peterson Cartridge FAQs
Peterson brass requires minimal preparation. Flash holes are centered and free of burrs, case mouths are chamfered, and cases are full-length sized. Most reloaders load Peterson brass straight from the box after a quick inspection, though some choose to weight-sort for maximum consistency.
Peterson currently manufactures brass for 58 different calibers, covering precision, competition, and hunting applications. Their lineup includes popular choices like 6.5 Creedmoor, 6mm Creedmoor, .308 Winchester, and .300 Win Mag alongside specialized options for extreme long-range shooting. Many calibers are available in both standard large rifle primer (LRP) and small rifle primer (SRP) configurations. Browse our full Peterson Cartridge selection to see current availability.
About Mile High Shooting
Mile High Shooting Accessories is a premier supplier of precision shooting equipment, high-end optics, and professional firearm accessories, serving competitive shooters, long-range marksmen, law enforcement, and military professionals. In business for over 20 years, Mile High Shooting Accessories built a reputation for offering top-tier rifle scopes, custom rifle components, and elite performance gear that meet the demands of precision shooting.
Mile High Shooting remains dedicated to supporting the military, law enforcement, and civilian shooting communities with industry-leading products and expertise. Whether you need top-tier optics, long-range shooting equipment, or complete precision rifle builds, Mile High Shooting Accessories provides shooters with the best equipment to maximize performance and accuracy in the field or on the range.