I got a box of this ammunition recently and I was pleased to see that BB uses the Hornady XTP JHP bullet. This is good for I have been reading over the years about 9mm bullets failing to penetrate far enough into a felon's chest. The 1986 Miami shootout comes to mind. The subject BB load is the perfect answer. The 115gr XTP JHP leaves my G17 muzzle at a muzzle velocity of 1400 FPS. This bullet will reach the heart or the medulla oblongata from any angle. It won't expand too quickly.