And I stand by it, Federal HST is the best self-defense ammo around
in my opinion. I will explain why I say that.
So a look back to the history of 9mmP in self-defense and law enforcement use. In the early days of the 1980s, the focus was on a light moving round moving very fast. Federal 9BPLE was a 115gr +P+ round that quickly developed a history as a manstopper.
It wasn't until the 1986 Miami shootout that ballistics became more important that subjective experiences.
Describing the whole shootout would take too long but basically the perps weren't high or anything, but managed to take a bunch of gunshot wounds from 9mmP pistols and .38 Spl revolvers without being stopped
The most significant point of that shootout in the context of ammo was the failure of the ammo (along with bad tactics, lack of firepower etc)
So out of this tragic loss the FBI took a deep look and figured out that some factors in a round choice are important, namely : Penetration, avoiding fragmentation or seperation of lead core and jacket, and of course expansion.
They ended up ditching 9mmP to develop 10mm Auto, and later 40S&W.
It wasn't until 9mmP was heavily improved with good bullet designs and proper loading that it fell back into use with law enforcement in modern times.
So, let's compare some ammo in light of this.
Notice how the HSTs show consistent expansion in every weight, while the Rangers perform in varying degrees.
Let's compare the best to the best. The Ranger T's most consistent being the 147gr with a size deviation of 0.197 inches while the HSTs most consistent round (124gr +P) has a deviation of only 0.052 inches.
In terms of penetration, the Ranger T 147gr ranged from 14.4 to 19.5 inches (5.1 inch deviation) while HST ranged from 16.2 to 20.1 (3.9 inch deviation). The standards that the FBI set are 12 to 18 inches of penetration through their calibrated ballistic gel with some experts suggesting this should be increased to 16 inches minimum.
The FBI gel is harder than the Luckkygunner ammo test as its made from dehydrated animal tissue. The Luckygunner test also uses a 3.5inch barrel compact handgun. So the penetration figures would actually decrease from the Luckgunner test when retested in FBI gel so you want more than 12-18 inches in this type of gel.
So the HST 124gr +P expands more consistently and penetrated more deeply in the Luckygunner clear gel which means when subjected to the FBI harder gel it would meet that 12-18" penetration standard easily.