Shooting does appear to attract a higher % of geek/nerd than other 'sports' - but then is it really a sport if you don't sweat? (Oh yes, i WENT there! :lol: )
That said i know plenty of 'men's men' that shoot, however they usually have minimal knowledge of the guns they're using and little to know knowledge about the legislation, history and other aspects other than pulling a trigger.
I have noticed quite a strong correlation between disinterest in football and interest in shooting though.
EDIT: I'm a gun geek BTW and i think its nature, rather than nuture
EDIT EDIT:
I'd say using this guide, most are geeks, rather than nerds;
http://www.wikihow.com/Tell-the-Differe ... -and-Geeks