Women, girls taking up guns, shooting in higher numbers – here are pink guns. Pink ear protection. Pink shell pouches. For your car, don’t miss the pink “Pistol Packing Princess” sticker. And if you want to pack heat while lunching at your favorite tea room, a purse with a special pistol holster is de rigueur. All of this is aimed at women who want to own a gun — for protection, for hunting or for sport shooting — a rapidly growing demographic. But don’t let all that girly pink fool you. Women in the United States, and Iowa, for example, take their firearms seriously. Research by the National Sporting Goods Association shows female participation in target shooting grew by 46.5% between 2001 and 2010. And an October 2011 Gallup Poll found 23% of women own a gun.