300 WIN. Just picked this up of a buddy who needed some cash, and I surely don't need it myself figure I will just stick it up for sale. this is a CZ 550 magnum it's a couple years old cuz I don't see them offering the flip up yardage sights in this caliber anymore. Very nice over all shooter and with some factory loads it shot just under 1" @ 100 yards. asking $800 plus $25 shipping to your FFL.