Why? Please answer HELP! Wrong bullets?

[usmcdadx2]

First, ...what Silver Bullet said about safety +1000

Second, the other day I was in one of my LGS's and I saw a box marked 45AP (Auto Pistol). I didn't bother to take note of the brand but it does look like at least one brand is using 45AP rather than 45ACP on their labels as well as on a headstamp.

[jaybet]

I admit mucho ignorance, but at the velocities of 45 acp, could it EVER be "Armor Piercing"? I thought those sorts of rounds need some serious velocity.

[tombogan03884]

If I understand correctly this ammo is marked "AP" as part of the headstamp.
If that is the case it has nothing to do with the bullet, it is a manufacturers ID.
The only ammo that has ANYTHING about the bullet stamped on the case head is the Non Toxic variety which are marked "NT" HOWEVER, they also use a smaller size primer as well.