Yeah.
I was daydreaming the other day and figured the ideal long range subsonic sniper bullet would be something like a long, huge 50 cal slug....Say about 5000 grains or more....it would resemble a crossbow bolt, only made out of lead.
Wouldn't this provide a good camouflage in plain sight, elevated blind?
http://www.isuzucv.com/accessories/airdeflector.html
All the better to shoot across 5 or 6 lanes of traffic, and hit standing targets, vacuuming their vehicles filling their gas tanks, loading their cars with packages? Or park on a frontage road in front of a shopping mall... take one shot and then drive off, as everyone inside the parking lot is looking around for someone with a gun or a rifle. And all without having to modify the body of the truck in a manner that would raise suspicion.