Sorry if I am beating a dead horse. I've heard some people take is seriously and other dispute it as nothing more than a myth. The newest addition I've heard to the subject is the pressure from the projectiles actually disrupting the valves that control heart function. What's your take on this? I tested some Magsafe SWAT loads in 38 Special last week and they pretty much bellyflopped. Very large cavities, very little fragmentation, very little penetration (and I thought Glaser Safety Slugs were bad). But the remaining phone book sections it did not penetrate had a noticeable ringed dent from the shock. I wouldn't carry these, but it sparked my interest since this is one of the few rounds designed to just dump all of it's energy as fast as possible (faster than Glaser).