Some 30.06 actions can be rebarreled and feed a 308 Winchester just fine. Others won't
Lets say you have one that does not.
You take a 300 Savage reamer and run it in a deeper than normal. to determine how far run a 308 case into a 300 Savage full length dies till the shoulder looks like the case on the right and ream the barrel till this round closes snugly. Then fireform the cases and you have a 300 Confederate Sharpshooter with a smaller shoulder diameter like the 30.06 and the action thinks it is feeding a 30.06 round.
The beats grinding on the action to try and make a 308 case feed.
Lets say you have one that does not.
You take a 300 Savage reamer and run it in a deeper than normal. to determine how far run a 308 case into a 300 Savage full length dies till the shoulder looks like the case on the right and ream the barrel till this round closes snugly. Then fireform the cases and you have a 300 Confederate Sharpshooter with a smaller shoulder diameter like the 30.06 and the action thinks it is feeding a 30.06 round.
The beats grinding on the action to try and make a 308 case feed.
