45 Auto 230gr JHP Defense Dynamics – 850 fps – 50 RoundsClassic . 45 ACP Defensive Ammunition Fiocchi Defense Dynamics The Fiocchi Defense Dynamics . 45 Auto 230 Grain JHP at 850 FPS delivers the classic . 45 ACP defensive performance that shooters have trusted for over a century. The 230 grain JHP is the standard defensive bullet weight for . 45 ACP the same profile that feeds reliably in virtually every . 45 Auto platform, from 1911s to modern polymer framed pistols, now with a hollow point cavity