Sellier & Bellot, SB556A, 5.56x45mm Nato, Full Metal Jacket, 55 Grain, 20 Rounds

The Sellier & Bellot SB556A rifle round offers shooters a reliable 5.56x45mm NATO option that pairs a 55 gr full metal jacket bullet with a brass casing and a muzzle velocity of about 3301 fps and muzzle energy near 1330 ft-lbs, making it well suited for range training, marksmanship practice, and competitive drills where consistent ballistics and feeding are important. This SB556A series from Sellier & Bellot is aimed at shooters who want economical, consistent performance for high-volume target work and zeroing rifles, and its full metal jacket profile promotes predictable trajectories and stable terminal behavior for training scenarios. You'll appreciate the compatibility with AR-style platforms and most 5.56 NATO chambers, the reliable cycling associated with brass-cased ammunition, and the straightforward ballistics data that helps with sighting and long-range holdover calculations. For range officers, clubs, and regular shooters focused on improving fundamentals, this round balances controllable recoil and repeatable impact points, while meeting common safety and transport considerations for organized shooting activities. Keywords: Sellier & Bellot, SB556A, 5.56x45mm NATO, 55 gr FMJ, target shooting, training ammunition, brass cases, muzzle velocity.