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The expanding full metal jacket, or EFMJ, bullet is pretty unique. It was designed to offer shooters of all types an alternative to hollow points, with a nice blend of stopping power combined with little to no over-penetration.
The principle behind expanding bullets are in the name, it is a projectile that expands predictably upon impact to reach a diameter size that is larger than the original bullet. This controlled deformation results in greater hydrostatic shock at the target which is the effect which gives the bullet a certain level of stopping power and as the ...
Full metal jacket ammo is a great choice for most types of shooting. However, we don’t recommend you use it for self-defense. FMJ ammo doesn’t expand the same way as ammunition specifically designed for self-defense use (like JHPs).
26 Μαρ 2020 · Full metal jacket (FMJ or FMC) refers to the copper or steel alloy coating on the bullet to reduce lead residue left in the barrel after firing. These rounds are reserved for the range, as they are cheaper in cost and not meant for self-defense.
Expanding Full Metal Jacket. Introducing a New Standard in Bullet Expansion Technology. Deep Serrations. Designed specifi cally for consistent expansion, EFMJ uses a patented synthetic rubber core that acts on impact to expand.
A full metal jacket (FMJ) bullet is a small-arms projectile consisting of a soft core (often lead) encased in an outer shell ("jacket") of harder metal, such as gilding metal, cupronickel, or, less commonly, a steel alloy.
26 Οκτ 2010 · EFMJ stands for expanding full metal jacket. This bullet was developed for those states where hollow-point ammunition is illegal.
