That may be true, but I can't afford to spend a pile of money on ammo to be used for a self defense and CC and then find out the bullets won't expand because my handgun has a 1/2" shorter barrel than what the factory tested there ammo with. I'm 53 years old, now disabled and have been shooting handguns ever since I became old enough to buy one. I apologize that I don't have the income ahymore to waste on buying self defense ammo and then find out later I should have just bought FMJ, because they would expand just as well, and cost a lot less. I thought somebody on this form might have had some knowledge on the subject I asked about, that's all, ElevenBravo.