I think the important thing to understand is that it's a death ray with stopping power that can bring a charging rhino to a halt, while packing enough knockdown power to shoot down an airplane, when fired from semiautomatic, military style, high capacity assault clips.
Now that I've touched all of the bases...
.40 S&W is a great round. James Yeager is possibly a very good trainer, but he is also prone to saying silly things.
Currently Own: Beretta PX4 9mm, Glock 23 (Gen 4), Glock 19 (Gen 4) x2