A couple questions on 9mm Defensive ammo
Hey guys I'm wondering if someone can clarify for me the difference in the +P designation. I understand the difference of a more powerful load but as far as effect on target how does it perform versus a standard load ammo. In other words is penetration different or does the +P penetrate the same but just dispense more power at impact or is there a noticeable penetration difference or expansion difference between the two in a defensive JHP round.
Also how much difference do the grains make. I normally target shoot with 115 grain ammo and my defensive rounds are the same 115 grain. would there be a distinct advantage to going to a higher grain and do you tend to see a difference in "accuracy" or point of impact between grain sizes.
I know there is alot of information on the forum and I've read through alot and watched videos but if anyone could provide some basic layman explanations regarding these questions or their personal experiences it would be greatly appreciated.