I'm a lefty. I want to buy a Browning McMillan Hells Canyon in 7 PRC. This is the long range model with 26" heavy Sporter barrel. The gun is fluted, threaded, and cerakoted.

I would like to have the barrel cut to 22" for handling and to get the weight towards 7lbs as much as I can. I don't care about threading it again. Will cutting it into the flutes mess up the barrel or the cerakote finish?

Any suggestions on a Smith to do this as I don't have one locally?