The FN-designed 5.7x28mm caliber, standardized in 2020 by NATO, was originally designed in the late 1980s for use with the military issued FN P90® and FN Five-seveN® pistol. With three decades of trusted use, the FN 5.7x28mm drastically improves range, accuracy and terminal performance from small arms with the hyper velocity bottleneck pistol cartridge. The FN SS198LF 5.7x28mm is a LE restricted, hyper-velocity hollow point duty round with a green tip for identification. A non-toxic cartridge, this load is designated for law enforcement use only, featuring an aluminum core, 27-grain jacketed hollow point bullet. The lead-free primer and aluminum core projectile complies with agency mandates for indoor range air quality.