Are 17-round magazines for a Glock 17 "high capacity" or "standard capacity?" Whst about 33 rounders made for the select-fore G18 machine pistol? Are they "high" capacity in any midel Glock? How about a 15 round single-column mag for 1911s? What *is* a "standard" capacity magazine anyway? CDNN Sports, per this full page ad in the NRA's magazine, thinks 10 round capacity is "standard" for all moden handguns.