Wow what a bizarre collection of minutia folks. No Army trains its personnel to accurately attempt precision targeting at 600 meters outside of snipers. If a grunt was to attempt to lay back and pop off rounds at that range your Gunny would kick you in the ass and tell you to advance to a potent distance.
Any round that can travel 600 meters has the capability of penetration, aimed or stray, resulting in death or injury. Any cartridge will travel that far. 5.56s will go a mile. Pistol cartridge SMGs are not meant to be accurate above 1-200 meters max. No one ever raised their SMG sites to max and attempted to pop off rounds a a quarter mile or more.
Point shooting is where weapons like this come into play. In fact any battle rifle can be point fired for results in combat. Unless you are in a trench somewhere completely shielded you have no time to squeeze of rounds at distant targets unless you have a properly scoped arm or something with knock down power like an 8mm Mauser or .30-06 or today’s .308. To attempt long range accuracy is frivilous in the heat of battle for the most part.
In jungle visual surroundings there are few shots taken at anything over 100 meters simply due to the fact that visibility is nil. The rounds will go much farther but they are unaimed. The concept of automatic rifles and SMGs is partly spray and pray to unleash firpower volume not buffalo rifle bullseye marksmanship.
Comparison of projectile ballistics is just silly as a determining factor of one arm over another. They all kill if you put the rounds in the proper place. None are so slow as to be less that lethal.
This whole thread sounds like some is attempting to peruse a book on weapon statitistics and decide supremacy of one weapon over another having never fire them or even having been in a real world combat situation.