PETERSON 40026-R 22 CREEDMOOR 50/10

Peterson Cartridge .22 Creedmoor brass is purpose-built reloading component designed specifically for long-range varmint and predator hunters who demand precision. Unlike necked-down alternatives, this brass is engineered from the ground up as a true .22 Creedmoor case—eliminating the accuracy-robbing problems that come with reducing larger caliber brass. Peterson worked closely with Horizon Firearms, pioneers in the .22 Creedmoor platform since 2014, to dial in every detail of this ammunition.

What makes Peterson's .22 Creedmoor brass fundamentally different is its approach to internal geometry. The neck wall thickness spec of .0143 to .0148 inches is precisely matched to the cartridge's needs—a spec you can't hit by necking down 6mm or 6.5 Creedmoor cases, which create excess brass bunching and the infamous "doughnut" that degrades bullet release and accuracy. Peterson also increased head hardness to handle higher pressures reliably and boosted internal volume to work smoothly with the slow-burning powders (RL 26, H1000) that shooters favor for this flat-shooting, wind-resistant round.

This is reloading brass for shooters serious about .22 Creedmoor—whether you're stretching shots past 800 yards on coyotes and prairie dogs or simply enjoying one of the flattest, least punishing centerfire rifle rounds out there. The 50/10 pack gives you 50 pieces of new, unprimed brass ready to load.

Key Features

• Purpose-designed .22 Creedmoor brass—not necked-down alternatives
• Correct neck wall thickness (.0143–.0148") for consistent bullet release and accuracy
• Increased head hardness for reliable performance at higher pressures
• Enhanced internal volume optimized for slow-burning powders
• Developed in partnership with Horizon Firearms, .22 Creedmoor platform pioneers
• New, unprimed brass ready for reloading

Specifications

Frequently Asked Questions

Why choose Peterson .22 Creedmoor brass over necked-down cases?

Necking down larger-caliber brass creates several problems: excess brass bunches in the neck (a "doughnut") that degrades bullet release, the work-hardening from necking undoes proper annealing, and the resulting neck walls are thicker than ideal. Peterson's purpose-built brass solves all three issues with correct neck wall thickness, proper hardness, and internal volume tuned to the .22 Creedmoor's needs.

What powders work best with this brass?

Peterson designed the internal volume to pair well with slow-burning powders. Common choices include RL 26 and H1000, which deliver the velocity and consistency this long-range round demands.

What's included in the 50/10 pack?

You receive 50 pieces of new, unprimed .22 Creedmoor brass ready for your reloading setup.

Is this brass suitable for long-range hunting?

Yes. The .22 Creedmoor is proven effective for precision varmint and predator hunting to 800 yards and beyond, and Peterson's correctly-specced brass supports the accuracy and consistency that long-range shooting demands.