I have heard that GoldDot and other JHP ammo does poorly when heavy clothing is work due to fabric filling the cavity at the nose of the bullet and preventing expansion. Federal Hydroshock are supposed to avoid this due to the little tip sticking out. This is all second hand info and I never tested it. Guess we need gelatin in a parka next.
I've looked at plenty of tests of the popular defensive ammo and the ones that were done properly have all shown that the Federal Hydrashock (which is a pretty old design) doesn't perform as well as the modern defensive ammo. The ones that have always shown the best results were Speer GD, Winchester Ranger T and Federal Tactical with the Ranger generally getting best marks across the board in both the +p and the 147gr.
There's a lot of argument about which rounds are the best and whatnot but you won't find anyone who's done their homework saying that any of the 3 above rounds aren't among the best performers.
Now I have to make this disclaimer for the 10 million people who are waiting to remind me: Training and shot placement is the most important thing.
I believe in that but I also believe there's no harm in trying to get the best ammo possible.
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