FN 5.7 x 28mm NATO) is a small caliber, high velocity, smokeless powder bottlenecked centerfire cartridge designed by FN Herstal with ribbed rims, pistols and Personal Defense Weapons (PDWs). ). Corresponds to the length.
5.7 x28 What is an effective round?
Figure result 5.7X 28mm
In short, it 5.7X 28MM appears that the 5.7x28mm cartridge is effective in the real world, despite its shortcomings compared to traditional cartridges used for self-defense. The 5.7mm has a flattened trajectory, which means it can more easily hit long-range targets.