I just got into guns about a year ago and have asked what the letters on the side of the box mean to a lot of different people. I always get some very generalized answer so I'm coming to you guys yet again. What do they mean and what do I want to feed my little fire breathing monsters . I bought a .45 compact last Aug. With it I bought some fed. 230 gr. hydra-shok JHP. I heard from some people on here that it was just ok ammo. Last week I picked up a .40 subby. and bought similar ammo for it. Just buying what these guys have. I'm gonna have to start buying on the net or something. Both are all black and I LOVE both. Never thought I'd be this hooked. These things are like tattoo's. Once you get one.... well, you know the rest. Either way, since I bought my 1st gun I've learned pretty much everything about it and how it works from you guys. So thanx again in advance for any info you guys can give.