Brass develops several splits while firing due to repetitive reloading. Therefore, while you are using the Winchester 40 s&w 180 grain jhp in the USA, you should ensure its brass is in order. An out-of-order brass can damage the receiver, and the shooter can be gravely injured. This happens due to excessive pressure on the gun, which explodes it. Therefore, you should ensure your gun’s brass case does not have any splits on it before shooting.