These cartridges are intended for use in pistols equipped with a suppressor (a.k.a. If you see the word "Subsonic" on a box of 9mm ammo, it means that the cartridges are loaded so that the bullet velocity does notĮxceed the speed of sound. Once identified, simply avoid that ammo in the future. The bullet shape is significant because you may find that certain bullet weights/shapes do not feed reliably through your gun. Hornady FTX ammo is designed for self-defense. HAP stands for Hornady Action Pistol,Īnd the bullets are designed for competition. 9mm HAP and 9mm FTX – These are proprietary terms used by the ammo manufacturer Hornady.They're suitable for practice ammo when you can't find anything else, and are Rifling they use is incompatible with plain lead bullets. This ammo shouldn't be used in Glock or H&K pistols, as the type of LRN – Lead Round Nose – This is plain lead, non-jacketed ammo.This is what most people use as defensive carry ammo. This bullet will expand on impact, reducing theĬhances of over-penetration. JHP – Jacketed Hollow Point – This is a lead-core jacketed bullet with a hollow point. ![]() These are required at some indoor ranges. TMJ – Total Metal Jacket – Same as FMJ, but the base is covered by jacket material as well.Same as FMJ but the sides of the bullet are straight rather than curved. FMJ TC - Full Metal jacket, truncated cone.FMJ FP - Full Metal jacket, flat point.Often, the base of this bullet (inside the case where you can't see it) is plain lead. This bullet has a lead core which is covered by a “jacket” made of copper or brass. This is usually the least expensive type of ammo. This bullet is usually a round point bullet, better suited for practice rather than personal defense. ![]() The bullet type is usually a 3-5 letter acronym thatĭescribes the shape of the bullet (projectile). Most people practice with 115gr ammo, and carry heavier stuff for personal defense.īullet Type – We're about to enter acronym Hell. Harder, have more recoil, and are more expensive. Common bullet weights for 9mm include 115gr, 124gr, 125gr, and 147gr. There areħ000 grains per pound, and 437gr per ounce. The bullet weight isĮxpressed in a unit of measure called “grains” (abbreviated “gr”). In addition to the cartridge designation, the ammo box will tell you the bullet weight and type (shape)īullet weight– This is the weight of the actual projectile - not the complete cartridge. Once you have the correct cartridge nailed down, the other info on the box describes the bullet weight and type (shape). Unless you have one of the unusual pistols described above, make sure the ammo you buy is 9mm Luger (most common designation in the US), 9mm x 19, or 9mm Parabellum.
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