Could somebody tell me what the "H" stands for, what the "S" stands for, and what the "T" stands for? I think the first two letters mean "hydrashock", but not sure. About the "T" I have no clue. Just curious. Has anybody tried this load? It's probably quite expensive, but it's supposed to be the big rage in defensive ammo. I'm interest in maybe getting the .45ACP flavor. (I don't know if it comes in other flavors). Any info appreciated. My apologies if this has already been discussed. If so, maybe if one of you guys could just show me a link? Thanks, AK Wanna kill these ads? We can help!