TexasCHLforum.com

Although not likely with adrenaline pumping, you can short stroke a pump. My Marlin 44 mag will hang up if you don't work it fast (needs some timing or burs removed). Neither of these are much of a problem if you shoot with regularity but your dad isn't a gun guy. I would recommend some sort of semi auto. Either pistol caliber carbine, an AR (even though he doesnt want one), or semi auto shotgun. I know they exist but maybe not in home defense form but a semi auto 20ga would be a good HD gun. I couldn't imagine touching off any gun inside but a SBR in .223/5.56 indoors sounds especially brutal to me.