Hi,
To me I don't see that they would stick away from the wall far enough to allow pivoting them towards the front of the room. I looked at axioms brackets from many angles when I was going to mount my rear surrounds to the ceiling. The M22 is a pretty big speaker to try and mount in that position. I had M2's that I hung from the ceiling which worked very well. Maybe consider ceiling mounting the speakers with them positioned horizontally.
Speaker bracket places speaker 2 and 3/8" from the wall and measures 5 and 1/8" from top to bottom.
