Hey Homeless. The gun is leaning against the wall. Cause I'm bored I just went out and measured the bricks on my house. 30" covers almost exactly 11 bricks. However if I pull the bottom of the yardstick just a little bit away from the wall 30" appears to cover 13 bricks.

Try it you'll see.

Heck you could make a pencil appear to cover 13 bricks if you angle the pencil and the camera right.