Thanks so much for this advice!!! any ohter clues besides barrell check to ensure I stay away from fakes??????Nice choice ! The 223 is impossible to find in good condition . They made more of the 600's than the 660's in 223 , but the 660's are rated much higher because they were never listed in the Remington catalog . Trouble is there are a lot of fakes out there . Make sure barrel code matches , manufacture date . Remington did very few barrel replacements , and the ones they did were documented .