Product Overview

Built for serious long‑range shooters, the Peterson 300 Norma Mag – Box of 50 gives you match‑grade brass that holds up when the pressure’s on. Each case is made with a harder head to handle higher pressures, so you can safely push your loads without the usual signs of stress – no sticky bolt lift, no blown primers, no split necks. The result is consistent, single‑digit standard deviation in muzzle velocity and rock‑solid reliability shot after shot. Peterson runs every new calibre through brutal QA testing – repeatedly loading cases above max pressure and firing them up to 20 times. These 300 Norma Mag cases came through that regime strong, straight and ready for more. If you’re chasing repeatable accuracy, long case life and brass that won’t let you down in Aussie conditions, this 50‑pack of unprimed Peterson brass is a smart, no‑nonsense upgrade for your precision rifle.

Key Features

• Engineered .300 Norma Magnum rifle casings provide a precise, consistent platform for long-range shooting applications, helping maintain accuracy shot after shot.
• Harder case head construction tolerates higher pressures, giving reloaders more usable reload cycles from each casing and reducing overall brass replacement costs.
• Extensive quality assurance testing, including multiple firings at above maximum recommended pressures, ensures each case delivers dependable performance under demanding conditions.
• Single-digit standard deviation in muzzle velocity supports tighter shot groups and more predictable ballistic performance downrange.
• Testing showed no heavy bolt lift, sticking, primer gas leaks, blown primers, cracked necks or bodies, or case-head separation, enhancing shooter confidence and safety.
• Primer pockets exhibited only minor loosening after repeated high-pressure firings, helping maintain reliable primer retention over multiple reloads.
• Durable brass construction remained visually consistent even after 20 high-pressure firings, indicating long service life for serious reloaders.
• Unprimed brass design allows reloaders to choose their preferred primers and loads, tailoring performance to specific rifles and shooting disciplines.
• Pack of 50 cases offers a practical quantity for load development and match preparation, keeping brass lots consistent for better results.
• Produced by Peterson Cartridge, a specialist in rifle brass, giving shooters confidence in the manufacturing quality and consistency of each casing.