Got a 742 in 30-06. First rifle I ever bought. As some said, keeping it clean is imperative to proper cycling. Heavy oiling is a no no for a 742. I do specifically remember that mine would not cycle federal premium ammo and would jam every second or third shot with it. I ended up shooting 150 gr Rem Core Lokt in it and didnt really have any problems. Accurate gun for an autoloader. Killed a pile of deer with that old rifle on dog drives. It's in the safe and I havent shot it in probably 25 years.