I'm interested to know the value of a Marlin Model 444 in .444 Marlin caliber. Have not seen it yet, but is reported to be in good condition and from the mid-1970's. Will get the serial number and try to date it. Could this one be pre-microgroove or does that not apply to the 444's? Would only be interested in it if I thought it would be a good CB shooter. Thanks for any advice you can offer.