Quoted:
Quoted:
It'll be less likely to overpenetrate.
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Exactly what i'm wondering about
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If you do some creative googling you'll find that there's been quite a bit of research into this topic. Cor-bons are good, gold dots are good, federal hydrashocks are good.
When you said you're shooting WWB right now, I presume you mean the WWB FMJs? .40 FMJs stand a good chance of going clean through a person and still being plenty lethal when they exit. A good JHP will hopefully deliver all of its energy to the target and not overpenetrate, and when it does overpenetrate at least most of its energy (and therefore velocity) will be expired, so it won't be as lethal on the other side.
That being said, overpenetration is ALWAYS a risk and if you shoot somebody with your CCW gun and a bystander is behind them, you stand a good chance of hurting an innocent. Bear in mind that there's a good probability of you also having complete misses with your ccw gun and sending rounds everywhere.
In certain scenarios where you absolutely have to shoot somebody and there are a lot of bystanders behind him, you can train to minimize the risk of this happening. This is one place where if you're close enough to the attacker a pelvic shot might be at a downward enough angle to minimize this risk. Another technique is to drop down to your knees and shoot up into the chest cavity at a steep angle.
But you can't guarantee with ANY ammo or shooting technique that you don't overpenetrate and hurt somebody. If someone's about to kill you with a sword, you have to take that chance. If they give you time (ie: opportunity), train yourself to move laterally so that your shot is safer.
Practice, practice, practice. I personally recommend you pick up the 165 grain gold dots, test fire them in your gun to make sure they feed, and start training.