selling for friend. Model 740 auto .244/6mm Rem, tasco 3x9 scope. asking $600.00 for it. Made between 1957 and 1959. gun was bought new by seller and has had 20 rds fired thru it this caliber was built on the .257 roberts cartridge and called the .244. Winchester came out with the .243 at about the same time so to prevent confusion between the two the name was changed to 6mm rem.