Brenneke USA K.O. 12 Gauge Ammo 2-3/4" 1 oz Shotgun Slug ammo review offers the following information;Deep penetration, expansion up to 0.9 inches. The K.O produces extensive damage in the first block of ballistic gelatin, expending virtually all of its devastating energy within the first eleven inches. Controlled penetration (only two point five inches in the second block) limits liability on unintended targets. The shotgun are supported, and as you know, the accuracy depend on my shotgun open sight, but the precision, depend on the bullet. In this case, at 50 yd, is already 5 MOA. For hunting purpose, this precision is enough.