An article about the .25 ACP pistol cartridge came to my attention today. It says I endorse the use of that caliber for Personal Protection. This is not true. Through personal experimentation, not on humans, I have determined it simply does not have enough penetration to be a viable cartridge for the purpose.
The only incident in my database in which an Armed Citizen was seriously injured after shooting a criminal with a ‘mousegun’ occurred with a .25. The first round bounced off the attacker’s teeth at point blank range.
I would much rather have a .22LR for Personal Protection than any .25 ACP. At least it will penetrate a piece of wood enough to stick in. That has not been my experience the .25 ACP.