I have read some articles recently questioning the 380 as a self defense round. Not looking to get into a discussion about other calibers here. Just want to keep it to 380 as an effective self defense round in either JHP or FMJ form. The school of thought behind all this is, due to it being a lower power load there is an expansion vs penetration issue. On one hand tests show that if the self defense ammo expands as it should, penetration suffers. They then question is it now actually less effective than FMJ that penetrates far better, and more likely to disable the bad guy. So the solution they say is to mix ( alternate ) between FMJ & JHP in the same magazine, that you load and carry or use for self defense. So you get the best of both worlds. It seems to make sense in theory, but is it practical in real world use ? Myself, I prefer to use a decent self defense ammo, and count on it to do its job and be effective. But you know it has got me thinking..............!!!!