CMO
I’m not a sme, but unless a pistol shot destroys something vital (brain, heart, nervous system, major artery), the person will live for a while….. until they die because of blood loss (ie brain and/or other organs stop functioning due to lack of blood/oxygen)
If one shot from a 44 mag could instantly take out a person, I would think a lot of military branch/agency/dept would use the 44 mag
For the branches/agencies/depts, math gives the answer:
9mm fmj has an area of 64 square mm
44 fmj has an area of 95 square mm
A cop’s G17 carries 17+1
A 44 revolver carries 6
A cop will make 18 holes totaling an area of 1152 square mm
A civilian will make 11 holes totaling 704 square mm
A 44 revolver will make 6 holes totaling an area of 570 square mm
Semi auto 9mm’s have other major pros….fast to reload…more rounds per reload….generally lighter in weight….faster to shoot accurately
9mm pistols aren’t as sexy as 10mm, 357 and 44 but are better than 357 & 44 revolvers in providing ventilation….and only falls slightly behind 10mm
(Glock 20 is 15+1…10mm fmj has an area of 78.5mm squared….16 holes with total area of 1256mm squared)
9mm will hold up head to head against 10/357/44 (assuming you could use hi cap mags)
If limited to 10rd mags, I guess 45acp is the king of ventilation. 10+1 holes with a total area of 1122 mm squared….almost 60% more area than 10+1 9mm
But I guess tests don’t indicate that the 60% larger ventilation with 45 makes it significantly better in the real world. 9mm is used by a large percentage of branches/agencies/depts.
I should look up how much HP’s expand out for each caliber…..