Eric S. Raymond (computer guru and gun nut) has a Gun Nut web page. There's an interesting collection of links there for gunnies.
There's quite a strong correlation between people who work in tech (and especially in computer/network security) and people who shoot. I haven't seen data on this but it is quite striking. My guess is that people in these fields are focused on assessing and managing risk, and are used to using tools to help manage those risks.