The Sellier & Bellot .223 Remington 55 Grain FMJ ammunition is engineered for high-volume target practice, sport shooting, and discipline training. Loaded with a 55-grain (3.60-gram) Full Metal Jacket projectile featuring a lead core and CuZn 10 brass jacket, this cartridge produces a muzzle velocity of 1,006 m/s and 1,822 Joules of muzzle energy from a standard 600 mm test barrel. Supplied in an economical 100-round bulk box, this ammunition delivers flat trajectories within mid-range target distances and uses non-corrosive Boxer-primed brass cases suitable for reloading.

Key Features

• Consistent Ballistics: Achieves an initial velocity of 1,006 m/s with a ballistic coefficient of G1: 0.259 (G7: 0.127), resulting in minimal drop of -7.9 cm at 200 m when zeroed at 100 m.
• Non-Expanding FMJ Bullet: The CuZn 10 metallic jacket prevents bullet deformation or mushrooming on impact, ensuring clean feeding and dependable penetration for paper and steel targets.
• Reloadable Brass Casings: Constructed with non-corrosive standard Boxer primers and quality brass cases for post-firing case reuse.
• Broad Twist Rate Compatibility: Stabilises reliably across conventional 1:12" and 1:9" hunting twist rates, as well as faster 1:8" and 1:7" barrel profiles.
• Economical Packaging: Packaged in a compact 100-round configuration weighing 1.28 kg, reducing packaging waste during high-round-count range visits.

Specifications

• Calibre: .223 Remington (compatible with 5.56×45mm NATO chambers)
• Projectile Weight: 55 grains (3.60 g)
• Bullet Type: Full Metal Jacket (FMJ, Projectile No. 2903)
• Muzzle Velocity (V0): 1,006 m/s (3,301 fps) from a 600 mm barrel
• Muzzle Energy (E0): 1,822 Joules (1,344 ft·lbf)
• Velocity at 100 m / 200 m: 877 m/s / 756 m/s
• Energy at 100 m / 200 m: 1,384 J / 1,028 J
• Ballistic Coefficient: G1 0.259 / G7 0.127
• Cartridge Overall Length (OAL): ~56.60 mm
• Primer Type: Non-corrosive Boxer
• Box Weight: 1.28 kg per 100-round box

Who is the S&B Sellier & Bellot 223 Rem 55 Grain Fmj Ammo 100 Rd for?

• High-volume sport shooters practicing at distances under 300 metres — Fires a 55-grain projectile at 1,006 m/s to provide consistent target trajectories inside 200 to 300 metres, packaged in a bulk 100-round box format designed for economical practice sessions.
• Target shooters needing reloadable Boxer-primed brass cases — Delivers factory-loaded 223 Remington FMJ ammunition producing 1,822 Joules of muzzle energy housed in reusable brass casings with standard Boxer primers for handloading once fired.

Less suitable for: Long-range precision shooting beyond 300 to 400 metres where a G1 0.259 ballistic coefficient leads to rapid velocity loss and wind deflection, requiring heavier 69-grain or 77-grain HPBT match ammunition instead; or ethical game hunting where non-expanding FMJ bullets are restricted, requiring soft-point or ballistic-tip hunting ammunition for humane terminal performance.