[John Rogers]

Being a black powder shooter with well greased cast lead bullets my hi power experience comes from watching several winning long range (1000 yards) shooters and what and how they shoot. At our range in Sand Diego we had one fellow who was one of the first engineers to help design General Atomics' drones so he was very technical. His rifles used carbon fiber stocks, Badger barrels, Nightforce scopes and custom machined bolt actions. I looked at one of his data sheets and his 6.5 Creedmoor bullets were zooming along at about 4500 feet per second and he would use 3 barrels or so a year and he would just throw burned ones away and put in a new one. He told me he ordered half a dozen barrels every winter and was close friends with the barrel company owner.

He was more serious than I ever wanted to be and an example was his bullet path at 300 yards shooting was nearly flat while my 540 grain cast lead bullets arched about 16 feet before dropping back to the 300 yard target. So why did I type all this....well
if you to be very serious then it will take time and lots of $$$$$. Shortening the barrel slightly might work but how is the rifling doing at high velocity shooting and the muzzle crown and so on? Finally is there a competent gunsmith who can do your requested machining so the barrel will not be ruined.
John Rogers the oldracer