What is the maximum range of submachine guns?

The measuring range of the scale is 200M, which can be regarded as an effective measuring range.

50~ 100 meters is the best range for submachine guns to exert their own capabilities such as firing rate and suppression.

In street fighting, submachine guns are very effective suppression weapons, because the fighting distance between warring parties in street fighting generally does not exceed 100 meters, which is the best fighting distance of submachine guns.