Page "9×19mm Parabellum" Paragraph 9

The energy delivered by most 9 mm loads allows for significant expansion and penetration with premium JHP bullets.

Illinois State Police, Border Patrol, Federal Air Marshals and United States Secret Service favored and used + P + 9 mm loads at for years with excellent results.

Lethal Force expert Massad Ayoob has stated that the " Tried, Tested, and True " + P or + P + is the best self-defense load in this caliber.

Proponents of the hydrostatic shock theory contend that the energy of the 9mm cartridge is capable of imparting remote wounding effects known as hydrostatic shock, in human-sized living targets.