I concede your point, but then the issue becomes what is the utility of interfering with a frequently exercised constitutional right in order to possibly have a minor effect on events that are extremely rare and only involve a tiny amount of people? It is so far of a stretch to argue that this is in the interest of "public safety" that I am inclined to believe that the real issue is not about mass shootings, but the police and politicians are actually demanding a lethal advantage over private citizens. The real question is what are they preparing for and do they think of us as their enemy?
The same reason that high capacity magazines allow you to better defend yourself
is the same reason it makes an attacker more dangerous.
That's an insane comparison:
1. an ATTACKER intent on killing the maximum number of people is going to plan, equip and be mentally prepared to empty a mag, reload, and continue firing.
2. a VICTIM who is SURPRISED by an attacker is not going to be able to plan the time, place nor equipment for that situation. Only the attacker gets the luxury of choosing the time, place and situation.
Therefore, the victim not having planned to carry or have on hand several mags already filled and in a position to quickly change when needed is at a disadvantage. Having a STANDARD CAPACITY mag reduces the disadvantages to at least two rather than three.
Assuming that all things are equal except for having a larger mag capacity, and that a person is more dangerous because of that, is naive at best --- dishonest at worst.
Let's say the Cops have the same capacity mags as a criminal. That's not an advantage for either. Same holds true for a home invasion. The resident and attacker with the same number of bullets loaded is no advantage for either.
But, when Daddy has to protect his and his family's lives, forcing him to buy 10 rd mags is a disadvantage. If he becomes a "danger" to the public, the Cops still have the advantage if mag capacities are equal -- they have an advantage in numbers of people, training, additional weapons and equipment. In that instance, time is on the side of the criminal -- unless the victim is armed and has the firepower to resist until help can arrive.