Copuff,

Laws pertaining to driving?

Ok, even though the car is the example you wish to use, we can make a comparison.

You can't speed on the highway, but you can speed at the race track.
You can't shoot within the city but you can shoot at the range.

You can't drink and drive.
You can't drink and carry.

You have to have a permit to drive.
You have to have a permit to carry.

You have to be a certain age to drive.
You have to be a certain age to carry.

You cannot threaten people with your car.
You cannot threaten people with your gun.

There is no limit to the fuel you may carry.
Why should there be a limit to how much ammo you can load?

There is no law limiting the speed a car could operate (limited only by the speed limit of the road).
Why should there be a limit to how fast a gun can fire a round under the law?