For a while, an SKS was my "home defense" firearm. I had the East German 62 grain plastic core "ubungspatronen" ammo loaded. Were I to do the same thing again, the 123 Vmax would be the way to go.
The SKS is reliable as a rock, about as heavy, too.
A folding-stock shotgun with long mag tube is probably a better idea, but an SKS will work, especially if you can get a side-folder stock for it.
