I rebarrled a .308 into a 6.5 Creedmoor. Just have the barreled action for it now, waiting on stock.

I loaded a dummy round to 2.82 OAL and it won't close unless I put a lot of force on it. Even at 2.70 it is really tight to chamber. I have some factory loads laying around, they are 2.68 and they close fine.

Could this be a headspace problem? Maybe I set the headspace too tight?

Any help is greatly appreciated!