You've never fired a gun have you? It takes a couple of seconds to change out a mag. Let me guess, you're an internet warrior who will use that momentary pause to bust out the combat skills that you learned from playing Call of Duty?
Actually I have. I go to the shooting range regularly. You're right. It's a couple of seconds. I have no problem at the range. This isn't a shooting range. Why is it that you, me, and police officers can excel on the shooting range but in shootouts fire 30 rounds and have the suspect get away?
SHooting with accuracy under stress is a totally different thing. Same with changing a magazine. I used that 270 round example. If you had 27 magazines, you'd probably toss them in a duffel bag. Yeah maybe at first the gunman is quick and reloads fast. After a while he's struggling to find innocent victims, he's frustrated. He has to reload too much, etc. Is that going to have ZERO effect at all?
In the case of this shooting, do you think he'd be putting the same # of rounds into everyone if he was limited to 10 rounds per magazine? I don't think so.
You're right, if you take a video game or some perfectly controlled scenario where the shooter had plenty of time without a rapidly changing environment, you bet he'd go around and do the same damage regardless of magazine size. However, you see how fast these shootings take place. Few minutes and it's over. Having to deal with multiple reloads with victims screaming, running, shooter having to run around room to room across hallways, etc, is not something you compare with changing a mag at the shooting range.
In fairness even a combat reload of a rifle creates at least a window of opportunity for someone to rush the shooter, particularly if he's standing, and a magazine as small as 10 rounds requires a lot of frequent reloads, with accompanying fumbling with magazines. (And yes, I have been militarily trained on and done a fair number of combat reloads). The present shooting is one of the few scenarios where it might not have made as much of a difference, admittedly, since the overwhelming majority of the people present were small children and isolated females - the same would not be true in, say, a movie theater or mall.
I myself don't advocate banning large-capacity magazines, but there's no question they are highly effective tools for spree shooting in a way that ten-round magazines simply aren't.
Well said. Unfortunately I'm not as concise and effective with my words, but you pretty much summarized my sentiments. The solution isn't to ban the large-capacity magazines. However, I do believe magazine size can greatly impact the way a shooting is carried out.