"Except if the laser designator is synchronised with the gun. If the laser is activated not before the gun is fired or even long (long in terms of bullet speed) after the projectile left the barrel, this wouldn't leave much lead time for not being surprised."
You might be surprised. At 1 Km a rifle bullet runs about M2 (say 680 ms^-1). You'd be looking at roughly 1 1/3 secs to duck. As the round is supersonic your IR receiver would warn you before you heard the bullet (and if you could hear it then its missed anyway).How far can you move in 1 1/3 secs will depend on how much you want to live.
"A new battlefield problem
You missed, private! Did you forget to charge your bullets' batteries overnight, you moron?"
Mo money, mo problems.
@is it me?
"I'd expect the US to allow its citizens to buy these, I should think the NRA are having orgasms”
I didn't you could justify DARPA's computerised sniper scope in civilian hands either, 'till I heard of "hunters" who set up a salt lick on the opposite side of the valley from their home and wait for Bambi before bagging him from a couple of klicks. More a sort of an armed consumer really. Handy if you're a bit of a wobble bottom. As seen on YouTube.
So this little beauty will likely end up on the NRA wish list as well. It's *much* simpler hardware should be *lots* cheaper provided you have a rifle of suitable calibre (and if you're in the NRA you probably have several).
"So the CSIs will have the joy of trying to work out the firing position of a guided bullet”
Well CSI Miami have coped with both Metalstorm and an Israeli weapon with a small video screen for shooting round corners But I will be interested to see what happens.
BTW Laser designators use PWM of the laser to make their (infra red) signal stand out from the background. Your laser pointer will be *useless*, wrong color and not pulsing with the right code. It might lure a stray pussy cat into the line of fire however.