[Drammach]

Let's see if I can recall Basic training and arms qualification.

We fired an M-16 with open sights, no scope.
Pop-up targets were set up at 75 meters, 150, 250, 300 meters.

I know it's bragging, but I qualified expert, which required about 95% hits on all targets at all ranges.
Let me reiterate, open sights, no scope.

This guy (or guys) is no sniper.

[Eagle Eye]

Let me reiterate, open sights, no scope

You forgot to mention that your shot was timed and the target was only available for 2-3 seconds.

Our guy here can pick someone who is refuelling and standing still for a couple of minutes.

[philetus]

"This guy (or guys) is no sniper."

I have to disagree. Maybe he is not a military trained sniper, but after his first kill,he was a sniper.

Shooting from 100 or 200 yards, with a scoped .223, a steady hand, and a good eye, is not hard.

Now, shooting from a vehicle, I`m finding hard to believe.
After 10 hits,I can't believe that not a single person has seen a rifle sticking out of a van window or out of the back, seen the puff of smoke from the shot.

The "white van" might be involved. Could be an accomplice
and the van may be a red herring to throw off the persuit.
If they stop the right white van, they won't find anything.