What is the difference between FMJ Ammo and TMJ Ammo?

FMJ and TMJ are types of ammunition with many similarities, but they are not the same. FMJ stands for Full Metal Jacket. It has a small amount of lead-exposed at the core base. The jacket in FMJ covers from the tip and only down to the sides.

TMJ stands for Total Metal Jacket which is also known as Full Metal Case. It is one of the most used bullet types. TMJ is enclosed in a jacket. It has copper covering the exposed lead. This reduces the amount of lead that would spread when used. I Hope you find this information helpful.

If in case you are not familiar with these two, these are terms that are used for two different types of bullets. TMJ means Total Metal Jacket while FMJ means Full Metal Jacket. The FMJ is known as the base of the bullet that comes with exposed lead while in TMJ the bullet comes with full copper plating.

Indoor ranges will require TMJ rounds because this usually contains a lot of less lead as compared to the FMJ. The TMJ is also known to be more accurate. Some people would choose between the two based on their preferences. Do remember that some ammo fans do not even recognize the difference between the two.