That stuff is overpriced crap.
You want the heaviest weight Federal HST ammo your pistol will reliably shoot.
THAT’s the shiznit.
I carry a mix, the fellow who told me about it called this ‘the double tap special’. One DRT and then one hollow point in defensive loading. I`ve tested the combo at the range and it feeds reliably in my weapon, but the fellow said the reasoning is that the DRT causes sudden shock by way of a massive but fairly superficial wound which stuns, slows down reflexes, and may be enough to kill outright, but it should enable you to get in the second deep wound channel shot if needed http://health.howstuffworks.com/human-body/parts/best-place-to-get-shot1.htmchannel:
My carry .40 Glock is loaded with Horandy 175g critical duty flextips.