First off this was not shooting through the wall unless it is made out of tissue paper. Secondly streamlines are a little to long for the clip that might be your problem.
I assume that by "practically put a streamline through a wall" he means that it made a very loud noise when it hit the wall. On the streamline note, yes.
I know but when I singled mine it would not go through paper with stefans let alone streamlines.
First off this was not shooting through the wall unless it is made out of tissue paper. Secondly streamlines are a little to long for the clip that might be your problem.