Confused... the caption at the end says 684 per minute... but he was talking 50 per second? Then 100 per second?
100 per second is minigun rate... 6000 per minute.
If that's what it is doing, (and I think it is) it is fun to watch the 'spacing' between projectiles. Because that is roughly the spacing between projectiles coming out of a minigun.
Cheers,
Sirhr