Gotta have a 22 LR. I love my Magnum Research 10/22 Clone. But as far as CF Rifles go I have to go with a .223 Rem, 270 WSM and my 338/375 Ruger. But if someone tried to MANDATE a 3 Rifle limit, I'd shoot them with my 30 Nosler, a Rifle I've also grown quite fond of.