I posted this in a duplicate thread in the Legal Forum:
So limiting a magazine to 10 rounds will prevent mass shootings? Like Romney has said, that maniac broke a lot of laws and still did what he did. If you are highly motivated to do something highly illegal, then you'll get it done despite silly and ineffectual laws.
How many of us have bought cookies at the store, and congratulated ourselves on selecting the 100-calorie packs? (Or had a loved one do this?) What happens? You still eat 800 calories in cookies...you just have to open more packages. And it probably only took you a few seconds more to do it.
This reminds me of the classic:
"If guns kill people, then spoons make you fat."
It is just wishful thinking that 10-round magazines will stop a motivated maniac. Just like 100-calorie packs won't stop a hungry would-be dieter.