Hmmm, I”m not a fan of blanket statements, so I think that a bit of a reach to say there isn’t any hydrostatic energy (shock) from a handgun bullet because of low velocity.
If that was the case every water filled milk jug shot with a handgun would develop an entry hole, an exit hole, and then all the contained water would simply leak out. Since most jugs I’ve shot and seen with handguns rupture and spray water all over, something has been transferred to this non-compressible fluid to create that reaction.
Now, with a small caliber-low velocity handgun round there will most likely be be much less force (shock) transferred to the static fluids than a larger-higher velocity handgun or much faster rifle round would apply. Also, one may surmise that this transfer effect will be positively or negatively affected by bullet shape and expansion (if any) as wider/flatter surfaces displace more fluid at speed less efficiently than rounded or pointed ones do. The variances in the resulting rupture and droplet spray pattern would tend to show an increased or decreased energy transfer affected by in the simple milk jug example.
Since the human body is estimated to be 60% (overall) watery fluids, with the delicate brain over 70% and lungs 80%+ watery fluids, the energy transfer to such fluid-filled masses from handgun bullets must have some sort of rapidly occurring effect as the .45 bullet goes from 1,240 mph (850 fps) to zero in roughly 18”.
https://www.usgs.gov/special-topic/...ce_center_objects=0#qt-science_center_objects
Does this mean a mans head or lungs explode like a water jug when shot with a handgun? Not at all. But at autopsy it does show the the innards of the lungs or head are seriously damaged in a wider area as fluid is displaced from the energy imparted by the handgun bullet into the watery organ. (“Hydrostatic shock”)
Again, there is not as dramatic an effect as the 2,700 fps .30-06 rifle bullet does, but it’s there nonetheless.
Stay safe.