I just joined to reply to a black powder post. I recently joined The High Road, TFL, Calguns.net, saiga-12 forum, and a grip of 4x4 forums.
I'll probably stick to Calguns primarily. This is because I read posts on national forums like "how do I increase the cyclic rate of my MAC-10", or "Is a 50 round clip excessive?", or "How many rocket tubes can I legally mount in the bed of my pickup truck".
And then I cry because I live in Kalifornia. Everything is awesome here except being a gun owner.