Handguns are more carefully controlled because they are affordable, easy to acquire and favored by small time criminals. Nobody is going tospend $7,000 on a .50 cal rifle to knock off the local "stop and rob" mini-mart.
Notice this weenie appoints himself as one who can dictate what other persons need. As soon as you cede the control of what you need to a politician or bureaucrat, you are forever screwed.
True, but it would be useful for stopping the fleeing felons after the robbery, wouldn't it. It'll shoot right through the average engine block. :)