Gary,
That descriptive method is merely to seem like one person or object is bigger, badder, better than another; has a one up. It's to make up for one's insecurities and with firearms, there should be no feeling of insecurities.
Also, realize that anything over zero (0) is a "high capacity" to those idiots.
It's the same for the "assault weapon" term. There is no such thing as an "assault weapon", they don't exist. And if they are going to ban one (1) kind of weapon, it makes no sense not to ban all kinds of weapons. Which means no pillows, cloth, food, water, ...everything in existence because everything in existence can be used as a weapon.
And by us using such terms, it gives them legitimacy when they are nothing more than false, propaganda terms.