Well let’s add a couple of visual aids. This is what 5.56x45mm NATO can do when you’re struck with it:
WARNING: GRAPHIC INJURY
“Estimated range was between 5-10 meters. 20”-barreled M16A1 used. At that range, estimated velocity when bullet hit was @ 3200 feet per second.
Entrance wound is on the inner thigh, exit is the huge stellate laceration seen on the outer thigh. Based on the xray view of the femur bone, bone was NOT hit, but broke most probably due to the temporary stretch cavity created by the considerable hydraulic shock wave the M193 cartridge is known to create."
I think the argument is more about do you need something that powerful in the hands of the ordinary citizen with little to no credentials.
I guess “Hunting Deer” would be a couple of categories too high considering that visual example - a weapons buyer with hunting permits and credentials not withstanding.