Guns: Main Ammo Types for handguns


The following basic ammo types are listed in order of armor penetration, best to worst.
AP - Armor Piercing - A hard bullet made from steel or tungsten alloys in a pointed shape typically covered by a thin layer of lead and/or a copper/brass jacket. The lead and jacket are intended to prevent barrel wear from the hard core materials. For gameplay purposes, AP is slightly worse on unarmored targets than FMJ. This is to indicate the hard AP projectiles' tendency not to deform or reliably tumble/yaw.
FMJ - Full Metal Jacket - Made with a lead core surrounded by a full covering of brass, copper, or mild steel. These have very little deformation or expansion, but will occasionally yaw/tumble. FMJ is a good choice when you don't know what you will be fighting or possibly if you will be going up against a mix of armor types.
JSP - Jacketed Soft Point - In the late 1800s, the Indian Army arsenal at Dum Dum, near Calcutta, developed a variation of the FMJ design where the jacket did not cover the nose of the bullet. The soft lead nose was found to still expand in flesh while the remaining jacket still prevented lead fouling in the barrel. For gameplay purposes, JSP is roughly splitting the difference between FMJ and JHP. It gives more penetration than JHP but has more stopping power than the FMJ.
JHP - Jacketed Hollow Point - Soon after the invention of the JSP, Woolwich Arsenal in Great Britain experimented with this design even further by forming a hole or cavity in the nose of the bullet while keeping most of the exterior profile intact. These bullets could theoretically deform even faster and expand to a larger diameter than the JSP. Best used against unarmored targets only, the JHP also has the least over penetration so it is ideal for use around hostages.