5 56 Ball Vs Fmj
This is due to an international treaty that was signed many years ago that forbids the use of expanding rounds.
5 56 ball vs fmj. 9mm 115 gr federal fmj vs 124 gr federal hydrashok top. That s not to say that fmj rounds are useless for defense. The m193 cartridge is a 55 gr lead core surrounded by a copper jacket fmj bt full metal jacket with boat tail. As with any full metal jacket bullet the fmj boat tail is fully or mostly encased in copper or another hard metal or material roughly resembling the shape of a boat boat tails are named for their designed tapered rear when viewed from the side.
223 5 56x45 ammo 55gr fmj american eagle ae223 20 round box. 55 grain fmj steel case norma usa 223 rem. When considering military rounds 5 56 you will notice a lot of m193 and m855. Military the ammunition that accompanied it was designated the m193 cartridge a standard brass case ball full metal jacket fmj 5 56 round.
This is referred to as ball ammo which generally just. The primer and case mouth are chemically sealed just like m193 ammunition. Far from it in fact. While the m855 green tip cartridge is 62 gr and has a steel core penetrator at the tip which helps it go through barriers more easily also fmj bt.
These 5 56 cartridges push a 62 grain projectile designed with a boat tail lead core and a special steel penetrator tip. Most nato militaries use only fmj rounds. The specified muzzle velocity of m855 ammo is roughly 3 020 feet per second. This bullet type is commonly used for competition shooting due to their easy assembly.
The 55 grain fmj projectile was of the same construction that had been used in similar projectiles for close to a century namely a solid lead core surrounded by a copper jacket. Your standard fmj is going to be the 55 grain m193. The 5 56 45mm nato official nato nomenclature 5 56 nato fyv fyv six is a rimless bottlenecked intermediate cartridge family developed in the late 1970s in belgium by fn herstal. You can see the lighter gray of the steel below.
It consists of the ss109 ss110 and ss111 cartridges. 55 grain fmj brass case federal ammunition xm193 5 56mm m193 ball pmc xp 193 5 56mm 55.