Got home from the range today. Fired 75 rounds of CCI Standard Velocity. No problem cycling. Began cleaning the rifle focusing on the bolt. Pushed the guide rail assembly running along the sides of the bolt to clean the bolt guide rod and spring. I noticed the movement of the guide rail assembly running along the sides of the bolt seemed gritty. Found a video on line to dissemble and clean the bolt. Removed the guide rail assembly running along the sides of the bolt, could not believe the gritty crud in the bolt channels under the guide rails. Could not reach it with Q tips and CLP. Put the bolt, recoil spring and recoil spring guide rod in a sonic cleaner with Simple Green for 15 minutes. Rinsed all in clear water, dried all. Reassembled. Two drops of Lucas Extreme Duty Gun Oil on the Recoil Spring Guide Rod. Reassembled the rifle. WOW! What great easy cycle action of the bolt now. Suggest cleaning those bolt guide channels and rails if you are having cycling issues.