It would have to proc 7 times every 5 seconds. It does not even approach such numbers.
So you can count to ~50 in 5 seconds? When I fired each round individually, the results I was getting seemed awfully close to 25%, and the barrel spins faster when it procs, so it's pretty easy to tell apart from just mistakenly firing two rounds. --- http://img356.imageshack.us/img356/8325/scrunchface2copyfx0.png http://www.xboxlc.com/cards/default/alle5.jpg