The Sellier & Bellot Small Rifle 4.4 Boxer Primers (manufacturer code V360587) provide reliable, consistent propellant ignition for handloaded centre-fire rifle cartridges. Manufactured in Europe with uniform cup hardness and an integral Boxer anvil, these primers interface with standard reloading presses using central decapping pins. They are formulated with a non-corrosive, non-mercuric priming composition to prevent bore pitting, breech face erosion, and firing pin corrosion across extended firing sessions. Sold in an outer package of 1,000 primers, they are purpose-built for rifle cases featuring standard small primer pockets, including .223 Remington and .222 Remington.

Key Features

• Consistent Flame Initiation: Strict manufacturing quality control ensures uniform primer cup hardness and reliable ignition across high-volume firing batches.
• Non-Corrosive Composition: Built without corrosive salts or mercury compounds, safeguarding barrels, chambers, and bolt actions from corrosive pitting and residue build-up.
• Boxer-Style Anvil: Features an internal anvil compatible with standard central decapping pin tooling on single-stage and progressive reloading presses.
• Standard Small Rifle Sizing: Engineered specifically with a 4.4 mm nominal diameter to fit factory-standard small rifle primer pockets securely.

Product Specifications

• Product Type: Small Rifle (SR) Boxer Primer
• Manufacturer Code: V360587
• Quantity: 1,000 primers per outer brick (10 sleeves of 100)
• Nominal Cup Diameter: 4.4 mm (~0.175 in)
• Chemical Composition: Non-corrosive, non-mercuric
• Compatibility: Small-pocket rifle calibres, including .223 Remington and .222 Remington

Who is the S&B Sellier & Bellot 4.4 Sr Small Rifle Boxer Primers 1000 Pack for?

• High-volume target reloaders — Requires a bulk supply of small rifle boxer primers packaged in a 1,000-count brick to sustain continuous assembly of standard rifle calibres such as .223 Remington featuring a 4.4 mm pocket.
• Pest-control and varmint handloaders — Relies on non-corrosive small rifle boxer primers with a precise 4.4 mm nominal diameter to ensure consistent, bore-safe ignition when assembling field loads for .222 Remington and .223 Remington rifles.

Less suitable for: Handgun calibres with lighter striker or hammer springs, where harder rifle cups increase the risk of light-strike misfires and require small pistol primers instead; and rifle cartridges requiring a larger pocket over the 4.4 mm diameter, such as .308 Winchester or .30-06 Springfield, which require 5.3 mm large rifle primers.