IMO a sticky bolt is a sign of pressure. Their are alot of different reasons why you can have pressure problems. Factory rounds shoud not cause a sticky bolt. Buy a GO NO GO GAUGE-If it does not fit thensend your rifle back to the mfr. Believe me they do not want bad chambers out there. They will fix any problem the rifle might have, and I doubt if they would charge you a penny. Sticky bolts are unacceptable, get it fixed. Tom.