Can I use these S&B 4.4 small pistol primers for magnum handgun loads like .357 Magnum?

No, Sellier & Bellot explicitly warns against using standard small pistol primers for high-pressure or magnum loads. For .357 Magnum or other high-pressure cartridges, you should instead use the S&B Small Pistol Magnum model V360247, which features the appropriate cup thickness andbrisant mixture for higher pressures.

Are these S&B small pistol primers compatible with handguns that have lightened competition striker springs?

S&B primer cups are made of brass and are moderately harder than some softer alternatives like Federal. Handloaders note that if you are using lightened competition striker springs under 6.0 to 6.5 lbs or revolver mainsprings below 11.5 lbs, you may experience occasional light-strike misfires unless the primers are seated firmly to bottom-dead-center in the pocket.

What are the legal requirements for purchasing reloading primers in Australia?

Because primers are classified as explosive components and dangerous goods under Australian state and territory legislation, purchasers must hold a valid Firearms Licence. Additionally, due to transport regulations, primers cannot be shipped via Australia Post and require certified road-freight dangerous goods couriers or in-store collection.

Small Pistol Primers - S&B V360157

The Sellier & Bellot Small Pistol 4.4 Boxer Primers (model V360157) are precision-engineered percussion ignition components designed for handloading standard-pressure centerfire pistol cartridges. Sized with a nominal 4.4 mm pocket diameter, these Boxer primers provide uniform ballistic ignition across high-volume handgun brass. Manufactured in Europe to CIP standards, the non-corrosive, non-mercuric priming compound prevents bore pitting and steel degradation, supporting consistent velocities across extended shooting sessions.

Key Features

Consistent Ballistic Performance: Uniform priming pellet weights and brass cup dimensions deliver reliable sensitivity and tight velocity standard deviations across factory-weight firing pin and striker systems.
Non-Corrosive Chemical Profile: Formulated with a non-mercuric, non-corrosive mixture that protects barrel steels and internal action mechanisms from corrosive residue.
Optimised Calibre Interface: Engineered specifically for standard handgun cases with 4.4 mm primer pockets, including 9mm Luger (9x19mm), .38 Special, 7.65mm Browning (.32 ACP), .40 S&W, and .357 SIG.
Target Packaging: Packed in 100-count plastic separator gratings with 10 trays per box, providing 1,000 primers per pack for high-volume reloading benches.

Specifications

Brand: Sellier & Bellot (S&B)
Model / Product Code: V360157
Primer Type: Small Pistol (SP), Boxer
Pocket Diameter: 4.4 mm (~0.175 in)
Quantity: 1,000 primers (10 trays of 100)
Weight: Approximately 433 g per 1,000-pack (master carton of 33,000 primers weighs 14.3 kg)
Cup Material: Brass
Mixture: Non-corrosive, non-mercuric
Primary Calibre Compatibility: 9mm Luger, .38 Special, .40 S&W, .357 SIG, .32 ACP

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

Competitive target shooters — requires consistent percussion ignition in 4.4 mm primer pockets when bulk-loading 9mm Luger or .38 Special ammunition to meet tight velocity tolerances in IPSC or SSAA disciplines.
Handloaders seeking non-corrosive components — benefits from non-mercuric chemical mixtures supplied in a convenient 1,000 pack format that minimises barrel maintenance across high-volume reloading runs.

Less suitable for: High-pressure rifle loads such as .223 Remington, which require dedicated small rifle primers (model V360587) with thicker cups to prevent piercing; heavy handgun loads like .357 Magnum that demand small pistol magnum primers (model V360247); or cartridges with 5.3 mm pockets that require large pistol primers (model V361607).

SKU	SAB42322LP
Model #	V360157
Brand	S&B
Shipping Weight	1.0000kg

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Sellier & Bellot V360157 Small Pistol Primers 1000 Pack

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