I'm looking into getting a cheap beater rifle for my truck. Can anyone comment on the Mosin-Nagant, Mauser 98K, or SKS for this role. Initially I lean towards the SKS because it is semi-auto and shoots a readily available round. But I am also looking into the Nagants. I kinda like the looks, but I've never handled on so I don't know about the quality and ammo availability. I could get a Nagant for under $100 online.