This 9mm ammunition is built to be fired in modern day 9x19mm (9mm) firearms. Q: 9mm - 124 gr Hydra-Shok JHP - Federal Legislation Enforcement - 50 Rounds Is this a +P spherical? Posted On: two/11/2013 By: Al M A: Federal hasn't formally classified this being a +P round. Although some firearm suppliers advise against using +P ammo within their guns