Definitely.
Although literally true (for small arms) -- 5 rounds/second of 00 buck is about 35 pounds of metal per minute; an Mk 48 or M240 (M80 ball at 700/minute) is only 15 pounds, and even an M2 (M33 ball at 500/minute) is only 45 pounds -- it's a rather useless statistic, as filling the air (right in front of you) with metal does little to tear a person (200 yards out) to pieces. Besides, you have to
carry all that metal.
I'm also curious what sustained rates of fire it's good for. Despite being the only weapon designed as a combat shotgun (the
CAW presumably disqualified because it was never produced), it still doesn't seem to have interchangeable barrels, so I doubt it makes 300/min sustained... then again, how would you carry enough 12 ga. ammo to feed it, if it could?
A little googling turned up no info on this front, beyond a few fanboys making wild assumptions.