Originally Posted By: sini
Just to make clear, because I know one of you will try it, I am not talking about low caliber handguns or anything that is primarily used for hunting.


Because you obviously have no clue what you're talking about. The round (that's the bullet with casing and load of powder) used in an AR-15 is the iddy bitty tiny one on the far left, everything else in this picture is used for hunting. As a reminder from physics, force is equal to mass times acceleration. Oh, just as an aside, the numbers below the rounds are the diameter of the bullet, so you can see that they get bigger (and more massive) as you move from left to right. You might also notice that the cartridge also gets bigger. That's because they have progressively more gun powder in the cartridge.

To be clear, what I'm showing you is that the AR-15 round is the one of the lowest caliber rifles you can buy.


[Linked Image from i30.photobucket.com]