I seem to remember an older federal court ruling that addressed the number of rounds a weapon's detachable magazine could hold. IIRC it said something to the effect that a 12-round magazine was not materially different from an 8 or 10 round magazine, and therefore the capacity of a detachable magazine could not be regulated. Does anyone else recall this, or am I finally losing it? Any help will be appreciated, my hair is gray enough.