Its a debatable point:
I think its the fact that the Hero seldom misses - hence the re-roll as the actual shot. However I would be happy to make it that the although the first roll of a 1 makes the gun run out of ammo - the Hero still gets a re-roll to see if he hits?
The Resistance Judges don't get the Lawmaster option (which is pretty huge in iteslf) or dual shooting with extra lawgiver - on the other hand they do get access to Sov guns and flamethrowers.....
It would also effect guns like the Cursed Earth Eagle.