Its probably the little flipper under the bolt that needs to be tuned. I was having this problem with my sons savage .22 semi auto and I ended up having to take the gun apart and tweak the shell feeder. I am sorry if this really doesnt pertain to your rifle, I am just trying to offer up a suggestion. Another thing is that the clip might need a dab of oil so that the spring doesnt snag at all when feeding bullets.