I'm reading a lot on the forum lately about guns and killing. I'm thinking when they first invented a gun it was to be used in either defense or offense.To make my point they were still using axe's,spears,bow and arrows,swords,all kinds of assorted weapons even after the gun first appeared ! Of course the first guns were very crude to what we have today,we have some really efficent firearms these days which takes me to a point. I really don't think the 25 auto and assorted small caliber,heck,even larger caliber handguns were an offense weapon,much more of a defensive weapon. Don't start jumping on me now,I know these handguns,like,knives,pitchforks,what have you,can be used offensively.Part of my point being that handguns are mostly a defensive weapon.Now here is my big question that may make or break my point. A 30 cal weapon generally has more killing power than a 223.Did the military invent the 223 for causing casualties,or outright killing. Is the M-16 family intended to be a super killing battlefield firearm or more of a casualty producer ? Thank you for any replies I may get !