The Sellier & Bellot .223 Remington 55 Grain Semi-Jacketed Soft Point (SP) rifle ammunition provides controlled terminal expansion and reliable cycling for vermin control, medium game management, and range training. Featuring an exposed soft lead core with a CuZn 10 brass jacket, this projectile deforms into a mushroom shape upon impact to maximise energy transfer and create effective wound cavities without excessive fragmentation. Supplied in a bulk 100-round retail carton, each cartridge is built with non-corrosive Boxer primers and reloadable factory brass cases compatible with .223 Remington and 5.56×45mm chambers.

Key Features

• Controlled Terminal Expansion: The semi-jacketed soft point design leaves the lead core exposed at the nose, ensuring reliable mushrooming and wound channel creation on impact.
• High-Velocity Trajectory: Produces a muzzle velocity of 3,301 fps (1,006 m/s) and a muzzle energy of 1,330 ft-lb (1,803 J) from a 23.5-inch test barrel for a flat trajectory out to 200–250 metres.
• Reloadable Factory Brass: Constructed with quality Boxer-primed, non-corrosive brass cases that can be reloaded for extended shooting volume.
• Broad Barrel Twist Compatibility: The 55-grain bullet weight stabilises reliably across common rifle twist rates including 1:12, 1:9, 1:8, and 1:7 inches.
• Bulk 100-Round Packaging: Packed in a 100-round box suited for pest eradication runs and range practice sessions.

Technical Specifications

• Calibre: .223 Remington (5.56×45mm chamber compatible)
• Bullet Type: Semi-Jacketed Soft Point (SP)
• Bullet Weight: 55 grains (3.60 grams)
• Bullet Diameter: 0.224 inches (5.69 mm)
• Muzzle Velocity: 3,301 fps (1,006 m/s)
• Muzzle Energy: 1,330 ft-lb (1,803 J)
• Velocity at 100 Yards: 2,820 fps (approx. 877 m/s at 100 m)
• Energy at 100 Yards: 971 ft-lb (approx. 1,384 J at 100 m)
• Velocity at 200 Yards: 2,375 fps
• Energy at 200 Yards: 689 ft-lb
• Ballistic Coefficients: G1: 0.207 | G7: 0.102
• Sectional Density: 0.157 lb/in²
• Cartridge Overall Length (OAL): 2.189 inches (55.6 mm)
• Case Type: Boxer-primed, non-corrosive reloadable brass
• Package Quantity: 100 rounds

Who is the Sellier & Bellot .223 Rem 55 Grain SP Ammo for?

• Australian pest controllers — requires controlled expansion and flat trajectory inside 200 to 250 metres to humanely dispatch foxes, wild dogs, feral goats, and small feral pigs, supported by this .223 Remington hunting ammunition generating 3,301 fps muzzle velocity and 1,330 ft-lb of muzzle energy.
• Target shooters and hunters reloading in volume — relies on Boxer-primed, reloadable brass cartridge cases supplied in a 100-round bulk pack firing a standard 55 grain bullet weight with a 0.207 G1 ballistic coefficient for consistent cycling and feeding.

Less suitable for: Long-range shooting beyond 300 to 400 yards where velocity decays and energy drops to 316 ft-lb with 28.8 inches of drop (where heavier, higher-BC match projectiles like 69 gr or 77 gr HPBT are required), or for hunting large, heavy game such as large boars, deer, and scrub bulls, where heavier calibres such as .243 Win, 6.5 Creedmoor, or .308 Win are necessary to satisfy ethical hunting requirements.