Bernie, You can't go wrong with Hornady Critical Defense ammo for HD. Just get you a couple of 20 Round Boxes and do like you said and if anyone on your property that has Bad Intentions that Round will do its job. I wouldn't use it for Target Shooting. I always keep a 15 Round Mag with it in my Carbine for Home Defense. I also use DRT ammo in my my Carbine and my Concealed Handgun.
I don't know if you have one or not, but If you don't you should pick up a Ruger Blackhawk in 30 Carbine. There fun to shoot at least I think they are. I have the Old 3 Screw Ruger Blackhawk before it was converted with the Transfer Bar. Every now and then I take it out of the Safe and go to Western night at the Range. It's a blast to see some old timers come ALL dressed up in Western Garment like the old Western Movies just having a blast.