Hello... I would only have to change the boat head correct?

Thanks for your time


My second option would be just going 6 millimeter Creedmoor shooting the 105 Berger hybrid and what is the difference between a 6 mm Creedmoor and 6 mm Creedmoor Mt has to be something about freebore I'm guessing and which would be better for the 105 Berger hybrid bullet.

I don't want bullet bearing surface to go below the neck shoulder Junction I believe is the correct terminology