I put this in IMHO because I doubt there is a real answer.
Something has been bugging me about the DC sniper.
The hole in the trunk of the car. About how big was it? I think I remember seeing a picture of it, looked to be round and about 2-3 inches.
I give you the AR-15 Bushmaster. Notice how the sights are mounted on a post on front and the handle in back. In John Muhammods car they also found a scope, which raises the sight line even more(if he used the scope).
The site line over the barrel looks to be a good 2 inches. Make it at least 2-1/2 if they used the scope.
This makes it very difficult to site the rifle through such a small hole and still leave enough room for the bullet to pass too. I know they had a tripod, but still.
A 3 inch hole might be big enough if you had the rifle stationary and just waited for a target to come into view (and stand still).
Was the hole bigger than I remember?
And would a bullet passing very close to a vertical obstruction far from the target and close to the end of the barel affect the bullet? Throw off the trajectory?