What is a total metal jacket bullet?
Total metal jacket (TMJ or full metal case) bullets are made by electroplating a thin jacket of ductile metal (usually copper) over a core of different metal requiring protection from abrasion or corrosion. Similar full metal jacket bullets mechanically swage a thin sheet of metal over the core.
Is FMJ ammo bad for your gun?
Are Full Metal Jacket Bullets Bad for Your Gun? Actually, full metal jacket bullets can be good for your gun! On the other hand, and by design, the jacket material is harder than lead. So as it’s forced through the rifling of the barrel, it produces more friction and wear and tear on the steel.
Is FMJ ammo good for self-defense?
Self Defence: FMJ ammo is not often used in self-defense situations due to the risk of the bullet striking an unintended target. Hollow point bullets are better for shoot to kill and self-defense situations. So always go with Hollow Point ammo for self-defense.
What’s the difference between Full Metal Jacket and total metal jacket?
Despite its name, a full metal jacket does not fully cover a full metal jacket (FMJ) projectile. Its lead core is actually exposed at its base. A total metal jacket, on the other hand, totally covers a total metal jacket (TMJ) projectile. Our world probably could have named The FMJ and TMJ more precisely.
What’s the difference between total metal jacket and full metal jacket ammo?
A total metal jacket bullet might also be referred to as an FMJ-FEB, where “FEB” stands for “fully enclosed base.” This is to differentiate it from common FMJ ammo, where the jacket covers all of the projectile except for the base.
Is TMJ or FMJ better?
Both types of ammunition are almost identical when it comes to accuracy and velocity. The TMJ round is suitable for target shooting, as is the FMJ. But when it comes to hunting, the TMJ is not always the best choice, as it won’t expand as well as other bullets like the hollow point.