Peterson Cartridge 7mm BR Match-Grade Unprimed Reloading Brass

Description

The 7mm BR has a loyal following among benchrest and metallic silhouette crowds for one simple reason: it is an efficient, inherently accurate round that does not need a lot of powder to shoot small. Peterson Cartridge brings its match-grade manufacturing to this cartridge, and that is a big deal since quality 7mm BR brass had been tough to source for years. If you run an XP-100, a custom bolt gun, or you are necking cases up for one of the Whisper calibers, this is the foundation you want under your loads.

What Makes Peterson 7mm BR Brass Different

Peterson dedicates its entire facility to brass alone, and it shows in the consistency. These cases are built for uniform wall thickness, consistent internal volume, and dependable primer pockets, which translates to steadier ignition and tighter velocity spreads across a string. The company runs both automated and hand inspection so every case meets the same standard, and the harder case heads tend to give you more reloads per piece than you get from mass-produced brass. Peterson has fired .308 brass well past typical expectations in their own testing, which tells you plenty about how these cases hold up to repeated firings when you treat them right.

Set Up Before You Load Your 7mm BR Brass

This is unprimed brass, so you pick your own primers and build the load around your rifle. One detail worth knowing: the 7mm BR uses a small rifle primer pocket with a small 0.060 inch flash hole rather than the larger 0.080 inch hole, so you will want an undersized or extra-small decapping pin to deprime without trouble. As always with quality brass, a quick chamfer, deburr, and trim-to-length check before that first firing pays off. From there you have a clean slate to work up a node and chase those sub-MOA groups the 7mm BR is known for.