For self defense purposes what is your preferred ammo (brand, grain) for a sub compact (barrel around three inches or less)? FMJ or HP? Does anyone mix different types of ammo (FMJ/HP, different grain) in a magazine for self defense purposes?
I don't recommend FMJ for defense. Too much risk of penetration.
Incorrect. Quality, modern HPs are designed shoot through barriers, that is to be "barrier blind."
See here for more scientific data written by a ballistics expert:
http://pistol-forum.com/showthread.php?4337-Service-Caliber-Handgun-Duty-and-Self-Defense-Ammo
I mean after passing through the target. Though it's been a while since I've looked into bullet tech. I would still recommend against a FMJ because of the through and through possibility.
I will never understand why people mix FMJ and HP's in the same mag. Particularly for self defence.
@Wishoot, Mike, I bought a pair of Ruger LCP's for the wife and I several years back. It's a great little gun when your carry option is limited by type of clothing or event that you are attending. Here is a video I thought you might be interested in on the Gold Dot 90 gr, which we carry. Speer advertises 1040 fps. the video chronographs an average velocity at 988 fps.
If you do the calculations, that is around 200 ft pounds of energy at the muzzle. That is plenty of self defense action happening at self defense ranges. Which is exactly what the .380 caliber and Ruger LCP is designed for. It isn't a combat pistol, and it's not a one shot man stopper. But considering the range in which you will use it, and If I plan on throwing 1 bullet down range, other bullets from that same magazine are sure to follow.
And considering that shot placement is everything, It is my advice to not shoot soft or hard cast lead grain bullets out of that shortened barrel. Sooner or later, depending on how many of those you practice with, the lead build up, will start affecting accuracy. Watch the video, and I think you will be amazed at the expansion it shows of the GD hollow point.
I also added a link that lists many different .380 cartridge ammo makers along with their ballistics for comparison.
http://www.youtube.com/watch?v=HTTuXpFChsA
http://www.ballistics101.com/380_acp.php
Hornady Critical Defense 110 gr (.38 spc.)
Hornady Zombie Max 185 gr (.45 ACP)
Hornady Critical Defense 165 gr (.40 S&W)
There are many other acceptable choices; I like Hornady