Have a 243 Ackley on a trued R700 action. It has a brand new un-fired Bartlein 24" MTU barrel on it, I would like to rechamber it in somethng with a factory ammo option, is this feasible? I have a 6 creedmoor, so I was thinking 6GT. I know ultimately I just need to check with a gunsmith, but thought I'd check here too. thanks.