/*what I call "Mister Shottiewuffles" to piss off the grognards 'round her' what get their panties in a wad over words like "shottie".*/
...that would be me. It's a cultural thing, I guess. I never heard anyone who hunts or is serious about shotgun sports use the term "shottie". From what I see it is used mostly on Internet forums.
I could just picture the guys in the duckblind edging away from me if I called my shotgun a "shottie". Sort of like using saying "I have to go out back of the blind to take a pee pee", or "Stop the pickup next shelterbelt, I have to go tinkly." It just doesn't sound very manly, at least to we "grognards" here in the sticks.
Come to think of it, I never heard an adult use "grognard" either. Must be an age thing.