If they are changing magazines then you have the time to do one of two things, if you do anything at all. You have the time to get up, thus marking yourself as the next target. Or you have the time to pull your own weapon, assuming you are carrying one. You do not have the time to get away. Try it. Lie down and time yourself to see how long it takes you to get up and than factor in the time it will take you to realize the guy is out of ammo and changing mags. You'll probably find the guy will be shooting at you before you even straighten up. Remember, if the guy is incompetent, you have three seconds tops.
I see no reason to create a limitation which will have no effect on the desired outcome. What it will hurt will be the manufacturing companies who make those magazines and the people who make their living there. It will hurt the retail stores that sell them. It will hurt the ancillary businesses that sell to the employees of the manufacturers and the suppliers of raw materials. My favorite carry weapon has a 13 round magazine, so I don't know how a 10 round limitation would effect me. But if I have to turn it in, that hurts me. All for nothing but an illusion to allow politicians to pretend they are doing something. That's a pretty hard sell from my perspective.
You seem to be assuming I'm the only target. If there are say 20 victims you bet it will let people get away. It's foolish to think it wouldn't.
That requires the massive assumption that the bad guy is going to follow the law and not possess a high capacity magazine. Now who would be so ridiculous to think criminals will all of a sudden begin to follow that particular law?
And please, don't come back with the idea that we'll eliminate high cap magazines! There are millions of them already out there and they're made of nothing more than sheet metal and a spring! It's not rocket science to extend an low cap magazine (every one can be) or build a new one from scratch.
Your 3 seconds doesn't include dropping a magazine or having trouble grabbing the next one..
Three seconds would be the slowest magazine change I've ever seen. Only a complete incompetent, with no experience would take that long. Every guy I shoot with can change magazines in well under a second.
But again, the point is moot. The bad guy is going to have whatever size magazine he wants. It's only law abiding citizens that would be burdened. Now why would anyone want to do that?
As mentioned I've only heard of these being used for evil. I'm not going to feel bad for the makers
Hunting is evil? Protecting one's family and property is evil? Ensuring the last measure of protection against tyranny is evil?
Wow. That's one hell of a world view you have there.