Hey, all. I've got a quandary. I've been reading up on defensive rounds and I can't decide. I've got 20 rounds each of the Cor-Bon 115 gr. +P JHP and the Speer Gold Dot 124 gr. +P JHP. Here are the ballistics numbers per Ballistics101.com: Cor-Bon: 1350 fps, 466 ft/lbs (no penetration or expansion numbers listed) Speer: 1220 fps, 410 ft/lbs. (no penetration or expansion numbers listed) I am assuming they both penetrate to about 12". I have read that the Cor-Bon has a tendency to fragment on impact, whereas the Speer have super reliable expansion with no fragmentation. But how the hell does the Cor-Bon get so much impact force from the lighter round? It rivals regular .45 ACP rounds. Is it the extra velocity? You'd think a heavier round would have more force. Right now, I am thinking the Speer is probably the all-around better performer because of it's reliable expansion and penetration. While the Cor-Bon is super fast and powerful, but it's kind of a crap shoot as to what is going to happen on impact might fragment and not penetrate deeply enough. What are everyone's thoughts? And please, let's not start a caliber debate or an ammo debate. Let's relegate things to the rounds I've listed here.