I was showing how restrictions on mag capacity has minimal effect on amount of rounds that can be fired. In this country, there are a lot of people who can match or come within milliseconds of Jerry's speed. Even I can get a fresh magazine loaded in less than 1.5 seconds if I am carrying a spare in my hand.
I don't follow the national competitive shooting scene, but I don't believe Jerry is at the top of the pile all that often any more.
Not sure from what you wrote ("magazine"), but the original reference was to reloading a revolver (using a "speed loader"). Doesn't say whether the guy at the school used a speed loader or not.
I also believe that all the "limited magazine capacity" arguments have little or nothing to support the claim for "public safety". Most of the shots at Columbine were fired from 10 round magazines, and there's no evidence that any more people survived because of that fact. I tend
to believe that all the "incremental" restrictions on firearms are thinly veiled steps to civilian (the "law-abiding" ones) disarmament. What that would accomplish, or make possible for those so advocating, I cannot speculate about.