Marlin 444s, 240 serial number (1976) JM stamped , no cross bolt safety. Its a "blast" to shoot. Makes big holes and carries a large amount of energy out to 300 yards. I have two, join the club. Comes with 18 pieces of brass and a box of ammo. Pic below is 12 g, .444, .223 ammo for comparison. Microgroove rifling not ballard. Yes those are scratches on the bluing and wood, a shooter- not a safe queen.