I got a chance to fire the .500 S&W at our outdoor police range earlier today. A friend and I were banging away with our 8MM "trash" when, at a cease fire a gentleman asked if he could take a look at our rifles. When firing resumed I let him fire a clip from my M48A. He invited us down to his firing point and told us to "take a couple of whacks" with his brand new Smith & Wesson .500. I took up what I thought was a fairly solid Weaver, and touched one off. WHOOOM!! I barely kept the sights out of my forehead. Talk about kick! I unloaded it and my friend stepped up for a shot. Looking from the outside, so to speak, as he shot it came back and up almost to the point of lost control. Hulk Hogan on his best day could not have got a follow up shot. On the way home he asked me what I thought about it and I said I'd get back to him after I soaked my hand in ice. Well, he called me just a bit ago and told me that his information said the energy transfer to game with the .500 cartridge would be about the same as a 30/30 at 75 yards. I told him he must be wrong. He insisted that a 275 Grain Bullet, which I think we were firing, at the muzzle only obtains 1750FPS, while the 30/30 170 Grain, is moving out at 2400FPS, therfore is actually more efficient. If true, I have not researched it, why pack a 4 1/2lb. revolver, when a 30/30 Carbine strikes the same blow at MUCH improved accuracy?