#1 buck is considered the most effective of the buckshots for the defending of the home. It strikes the nice balance of penetration and overall wound cavity area, and it's what I keep in my M12 riot gun for home defense:
I use plain ol' Winchester 2 3/4" #1 buckshot shells as you (might be able to) see from the picture. I understand Federal has out the personal defense reduced recoil #1 buck with the flight control wad, but personally I don't see the point in it. At the distances one would use buckshot for personal defense, that wad is just going to keep all the pellets together. I'd rather have them spread a hair, and once buck strikes flesh it has a habit of going every which way (a good thing) but wouldn't that wad keep them all clustered together??
I very much like the Federal premium 00 buck 2 3/4" shells with or without the flight control wad for defense outside the home or for LE or even .mil use, but for inside I think the benefits of the flight control wad are lost and may even be a detrement to ballistc performance.
OP, if you can't find the shells you're looking for keep in mind you will be served equally well with other, more plain #1 buckshot loadings.