D00d, this is is simply not true. ALL rounds produce a temporary cavity. This is a matter of the physics and cannot be avoided. The only difference lies in how much. Any bullet striking flesh is going to generate a shock wave, which in turn produces the TSC. This is true for ALL projectiles hitting such a target. A BB gun will have a very small one and a .44 Mag will have a relatively large one. Shoot an intruder with a 375 H&H and the TSC will be far and away larger still.
Brother,all due respect,but as I pointed out the TSC of a handgun round,unless its a handgun that propels its projectiles at and above the velocity of a rifle round,lacks the energy to actually be a wounding mechanism.
While "the shock cavity" is a fact,you'll get no argument from me on that,and bigger more powerful rounds do in fact produce bigger TSC phenomena- there is a cut-off point for when the TSC is actually productive in producing wounding- which is the ultimate factor in putting an opponent down.
You can even see the differing profiles of shock cavity in gelatin in the pictures I posted.
But because of many factors,mainly the elasticity of human tissue and the energy of the projectiles' momentum,most handgun rounds cannot be relied upon to do any damage with the temporary shock cavity.
Instead,they damage pretty much what they physically hit.
Think of Glaser Safety Slugs- a round designed entirely around the principle of using the energy of the projectile to effect a "stop".
DISMAL failure,and their only use is as a 'first one or two rounds out' load to try to 'discourage' further aggression when your concerned about over-penetration in your house or whatever.
Now contrast this with the Miami FBI shootout where,ironically as pertaining to this discussion,a 115gr JHP 9x19 bullet was blamed for failure to penetrate and destroy the heart of one of the suspects.
http://www.firearmstactical.com/briefs7.htm
This is why the 10mm was born.
Far from proving the argument against the 9 para,however,this proves that penetration,and what the bullet actually hits,is much more important,indeed- it is the only thing that actually matters,next to achieving skill at arms(for placement),in combat handgunnery.
This is also where the "12 inch rule" was born.
So in effect-
ANY caliber that can penetrate 12 inches or more with a given load,will do the job.Even the lowly .22 short,as seen in my previous example in prior posts.
With handguns,expansion is icing on the cake,and if you choose a caliber that has issues satisfying the "12 inch rule" as well as expanding,like the little .380 I'm wearing right now,the default is to choose penetration over expansion.This means having to settle for ball loads or maybe finding "something special"=
http://www.buffalobore.com/index.php?l=product_detail&p=127
I have absolutely no worries about trusting the combination of a keltec P3AT size pistol and that particular load with my life.It will penetrate,the flat nose will crush rather than 'slip thru' tissue like FMJ is sometimes said to do,and I believe it would perform better than that lousy 115gr 9 para load the FBI man had in his pistol the day of the infamous Miami Shootout.
If I do what I can to ensure as good placement as possible,and I also play hard with the mentality of "shooting them to the ground",this combination will work.
Same with any kind of handgun/ammo combination- which,by the way,is a MUCH more important thing to be talking about than mere caliber alone.Seriously,the internet would be a better place if people talked about caliber in terms of what loads perform best with a given claiber rather than just having caliber wars that have no real use or bearing on the reality of combat handgunning.
Even the 10mm can be "loaded to fail".Think again- Glaser Safety Slug.
Placement and penetration are the absolute rules to adhere to.
The TSC of a handgun round just does not come into play.
Unless,of course,your handgun is chambered in a rifle round like your .375 H&H.