I heard yesterday at the trap club is that the US Govt. is buying up and hoarding ammo -- to drive up the price and discourage people from RKBA.
Trap ammo -- 12 gauge, low base, 1 oz. light load, 7 1/2 - 8 birdshot -- which the club purchases by the truck load -- seems to be available and holding steady on price. But then, it's not on the "list."