Hornady TAP (Tactical Application Police) 12 gauge 00 buck/low recoil. I use them in my Mossberg with pistol grips.
Also good to know, but I am not convinced that 00 buck is the best load for home defense. Once upon a time many years ago, I read an article about a "great white hunter" type who led big-game safaris, and had to act as "stopper shooter" in case the client failed a kill. He said that jaguars were the most dangerous game, and he chose No.1 buck, as the greater number of wound channels gave more blood-loss and quicker kill/stop.
That logic made sense to me.