OK I have a model 10 that has an green mountain barrel on it. The gun shots awesome but my problem is with the bolt. Bolt lift is OK but to actually pull the bolt back is next to impossible. I almost have to hit it with my hand multiple times to get it to cycle. I have tried a different bolt. Multiple reloads (although they were all federal brasd) and even some older winchester factory bullets. Bolt pull is effortless on an empty chamber.

I'm kinda leaning towards a touch to much headspace. Would that cause my problems?
Anyone have any suggestions?
Thanks