Elvis says:
http://www.gamesas.com/index.php?/topic/1117961-happy-about-the-realism-of-firearms-as-i-am/
So, yep- you can limit a gun as you described.

Interesting. Even if the devs didn't capitalize on this I can see modders having some fun with it. It shouldn't be too hard to get yourself a little snub nosed .38 to take in the casino with you when you have THE MAGIC OF MODS.
I just had a thought, will super-mutants have armor or just a lot of health?
I was just thinking about how awesome a AMR loaded hot with a hollow-point projectile would be to the noggin of a super-mutant. Since hollow-point projectiles are going to be effective against lightly armored and clothed opponents what exactly constitutes as armor and how much will it affect the bullets?
Edit for clarification: Up to what point will using ammo not 100% suited to the task at hand affect in-game weapon performance?
And also, how about a jacketed sabot round for the .50?????
I wonder how DT will even work. Will it be just the armored parts? Like, if there's a guy with a power armor suit and no helmet, and I shoot him in the head with a .22, will it bounce off because of DT? That would seem sort of stupid.
It even flies in the face of canon. Yes, canon, because Maxson II died when a poison arrow hit his unhelmeted head. If the DT system worked as described, the arrow would have bounced off and he would have lived.