Most gun scribes will tell you the .25acp is not enough cartridge to defend yourself with. I agree there are more effective cartridges, but if you would like to be shot with a .25acp, especially with the Speer Gold Dot hollow point, step up to the plate and volunteer. I fired the Speer 35 grain Gold Dot hollow point into a Dallas Yellow Pages, and it penetrated 1030 pages. Not bad. Having been a nurse for three years, I have also personally seen the damage a .25acp can do, and it's not pretty. Even when it does not completely penetrate the skull, it sends secondary skull fragments into the brain, doing incredible damage. Granted a 1/4 inch bore is not as intimidating as a 1/2 inch bore, but one shot from this little demon should change a determined attacker's mind pretty quickly. Do be prepared for followup shots. That's why auto pistols have clips holding more than one round. I greatly prefer my .25 pistol to nothing, and I'm also a 5th degree black belt. This "mousegun" extends my range substantially. - H. T.