Just to clarify, I think that limiting clip sizes is valuable because not everyone who goes on a rampage will be a quick reloader. Probably not even the majority, given their state of mind.
The shooter who attempted to assassinate Gabby Giffords, for instance, was stopped when he attempted to reload
However, smaller clip sizes is not some cure-all and a skilled gunman can load nearly supernaturally quickly. Yep, even a revolver.
Too often, people who are inexperienced latch onto some little change they think will solve everything.
But incremental steps matter. That’s the only way America’s gun problem will ever get solved, as there never will be in anyone’s lifetime reading this a blanket ban on guns.
Limiting clip sizes is a good step, and one I support.