Are you kidding me? Pros and those who never came close can push this limit easily up to 2000 to 5000mg per week (see the thread posting an alleged Dorian cycle). Doesn't make it smart, it's just what some do.
For most bb's not aspiring to be Mr. Olympia, or for those of us who don't even compete, 1000mg per week is probably as high as you would ever need to go.