Vern, sorry but my response wasn't toward you. You replied in between me reading the one before you and when I posted. The post I was replying to said:
I will NEVER advise to ANY person that the .25 ACP is the right caliber under ANY circumstances.
As for the comments insinuated by some that there is "Some Limit" as to the caliber; I.e. Nothing below a 9mm is worthy to be used for self defense; that is just pure Bull, ignorant, and naive. At least if you're going to say such things, at least preface it with the statement: "In my opinion". Because that's all it is. There is absolutely nothing wrong with a 25, 32, or 380 auto being used as a carry gun for self defense. And there is definitely nothing wrong with having 5,6,7, or 8 rounds in a revolver or semi-auto instead of 10,15,or 18 rounds. I'm sure that there are those out there that are really terrible shots; don't practice enough; and so on. For them, bigger bullets and more of them are definitely needed. For those who know how to shoot; can keep their composure; practice often; and have great shot placement; they have the luxury of not need a 15 round magazine or 9mm or 40sw. Some may just like the "Security Blanket" affect. But that is just my opinion.
Oh, and easyg; I didn't give her a limited selection of guns to try. I mentioned 3 of them. And for what it's worth, the 38 spl is pretty close to ballistics to the 9mm. And having a 4" barrel probably made the recoil about the same. So while she didn't mind the 38 special, she wasn't tickled about it. But if you must know; she had the chance to shoot:
1. Sig P220
2. S&W Mod 13-1
3. CZ 82 9x18 mak (In between a 380 and 9mm)
4. AMT 380 backup
5. Walther PPK 32auto
6. FEG 7.65 (32 auto) (Clone to the walther)
7. schmidt 22 mag/lr revolver
This wasn't everything available, but she also got to shoot quite a few rifles. But because she lives in the Communist State of New Jersey (I was born there); she will probably never get a chance to shoot again for quite a while. But if she was to decide on getting a handgun for self defense, there is no way in hell that I would let her get a 9mm, 40sw, or 10mm. Not because of the caliber, but because it's a semi-auto. I also wouldn't let her go for the Walther 32acp or the Sig P220 45acp. ANY person buying a hand gun for self defense and either doesn't have a lot of experience with weapons and/or won't be practicing a lot, should be getting a revolver of some type. Preferably a 357 mag that they can shoot 38 specials through it; yet has the ability for them to grow into if they'd like.
So, the question is: "Why do people like certain calibers". Well, I like certain calibers for 3 reasons: 1) They have a true PURPOSE. Not hype; not because someone's been watching too much hollywood; but a real purpose. 2) For fun. Some calibers I like simply because they are fun to shoot. Or, they are so cheap; e.g. 9x18 mak, that they become more fun to shoot because I can shoot more of it. 3) And finally, as a collector. I.e. I would never choose a 30-06 for hunting; even though many do. However, I love military weapons, and the M1 Garand is one of the best rifles in the history of warfare. And it happens to be a 30-06. And while I don't own a 9mm for self defense; "I have no need for one when my regular carry guns are either a 45acp or a 32acp which both work just as well"; I really like german lugers and other military weapons. The 9mm was very popular in the early parts of the 20th century. So there's 3 reasons why I like certain calibers. But for self/home defense purpose, #1 is the reason. The caliber has to have a purpose. The 40 and the 10mm never really had a purpose other than to provide more rounds in the magazine than a 45acp. Because the 45acp was obviously so much better than the 9mm anyway. But because I have no need for more than the normal 7 rounds in a traditional 45acp, the 40 and 10mm have no purpose for me.