This is a question for the ammo historians here. I've been ccw'ing Federal's 115-gr+P+ in a Glock 19 for some time now. It is moderately available, not too expensive, and I shoot it particularly well. I'm aware that Winchester 115-gr Silvertip was kinda the standard for LEOs carrying 9mms for much of the 1980s until the Miami HP shootout shed some light on the effectiveness (or ineffectiveness) of that particular cartridge. I'm also aware that around the same time (late-80s I believe), Federal began mfg'ing Hydra-Shok ammo. Since Hydra-Shok took off and became so popular for a long while, when then, did Federal introduce their 115-gr+P+ load, and for what (if any) specific purpose? Was it to ensure more consistent expansion in their 115gr JHPs with the propellants of the time? Was it simply to offer a hotter load? I'm not interested in hashing and rehashing how "Buffalo Bore this, or Underwood that, or instert-boutique-load-here is so much better than the old Federal load", just looking for some historical context for what has become my preferred ccw load. Thanks in advance.