RPGamerGirl,
Please bear with me. This is probably going to be a long post. Not going to say anything about That Guy (you are probably right with your gut instinct, since you were there & none of us were). But your report of the encounter, and the reactions you've gotten in this thread, got me to thinking, so...
A lot of times, people mix up two possible meanings for "it's too big for you."
- Meaning 1: "You can't handle that caliber of firearm."
- Meaning 2: "The gun's grip is physically too large for your hands."
When someone uses either meaning, they may or they may not know what they are talking about. But the two are
not the same thing.
If they mean you can't handle that caliber, they might also mean, "... because you are a new shooter and will develop a bad flinch habit as you keep shooting it." Or they might mean something more like, "... because you are physically small, you will have more difficulty controlling the recoil to bring the gun back onto target quickly for follow up shots than you would if you were physically larger, or were firing a smaller caliber."
Both of these points are valid ones, though neither might apply in
your particular case. One of the things that chaps my hide in gun stores is the constant & pernicious assumption that
all female shooters are
new shooters until we prove otherwise. Yes, many women looking for a firearm are looking for their very first firearm. But many of us have been shooting for years. It's tiresome to always & forever need to deal with the assumption that we're all new shooters.
As for the second idea, the belief that someone who is physically small will have more trouble bringing the second and subsequent shots back onto target quickly: the assumption is annoying, but I believe it is true. Lisa Munson, who holds 8 national women's titles and is the only female shooter to achieve Master Class in IPSC's Limited division, is 5 ft 1 in tall and weighs only a little more than 100 pounds. She says her size has absolutely been a factor in her shooting. It doesn't have to be a limitation (as she has so amply demonstrated!), but it does mean she has had to work a lot harder at controlling the gun than someone with more body mass would need to do. I took a one-day seminar from her several years ago, and was fascinated to hear her explain how carefully she has needed to tailor her loads to stay within the power factor while providing herself with the lowest possible recoil for control. She does shoot Major, not Minor, and she does it very well indeed. But her size has been a factor for her to deal with. So the lesson here is 1) it does take more work for smaller people to control large calibers, and 2) physical size does not need to be a limitation unless you aren't willing to do that work.
Now about Meaning #2, that the gun might be physically too large for your hands. This one's a little more tricky, but here's my take: If you cannot reliably reach all of the controls, the gun is too large for your hands. If you cannot flick the safety off with your
dominant thumb, the gun is a poor fit for you. If you cannot get the correct portion of your finger on the trigger while the backstrap fits snugly into the web of your hand and the barrel aligns with your forearm bones, the gun is almost certainly too large for you in this sense.
What does "too large" translate to? Well, first,
it does not mean you cannot shoot the gun at all. Obviously, you can! And you enjoy it, too. But when the gun does not naturally align with your forearm bones, you will have difficulty in less than ideal conditions because you cannot easily use your natural pointing instinct to bring the gun quickly onto target. It also means you will find it difficult to manipulate the controls, especially when you need to move those controls with just one hand such as you might need to do under less than ideal conditions. Although you might really love an incorrectly-sized gun and enjoy shooting it for fun, you will never shoot an incorrectly-sized gun as well as you would shoot one that actually fit you well. And that is especially true if you need to shoot that gun very fast under maximum stress and non-optimal conditions (such as in the dark, or while you and your target are both moving). Again, I'm not saying you can't shoot the gun at all or that you can't enjoy shooting it; I am saying that it will take more work to master and that (especially under stress) you will never shoot the incorrectly-sized gun as well as you would be able to shoot one that fits you better.
Does this matter? Yes and no. It doesn't matter at all if you have the gun for pleasure shooting or for plinking. (D'oh! A gun you love is a gun you love...) But it does matter if you envision needing to shoot the gun very quickly under maximum stress, as you might need to do in self defense. If you need to do that, you will want
every advantage you can possibly get, including the advantage of a firearm that easily aligns on target using your natural pointing instinct rather than one that requires a less instinctive and more mechanical adjustment to align on target.
Similarly, the caliber you choose matters not one bit if you are willing to work as hard as Lisa Munson has worked to overcome the natural limitations of her size. If you aren't willing to work quite that hard (she shoots upwards of 20,000 rounds/year), and you are physically small, you might want to choose a caliber that will take less work to master. For most smaller people, the ideal balance will fall somewhere between those points: we'll work hard, though not as hard as she does, and we'll choose a caliber with as much power as we're willing to regularly practice with. That balance point will be different for everyone, and it's sure bet the stranger in the gun store can't tell you what
your ideal balance point will be. Certainly not by blurting it out within seconds of meeting you!
Hope this makes sense and doesn't offend too much. What I'm getting at is, it's not quite as black & white, yes or no as we'd like to think. Finding the "ideal" gun for self defense is a very personal process, a little different for everyone, and there are a lot of variables to consider. Just because some folks are too dogmatic about the whole thing doesn't mean those variables don't exist. They are data points -- nothing more, but also nothing less.
pax