1-9" Broughton 5C buy it and let your barrel woes go away.
I had the 5C on my 6-284 which everyone knows is a barrel burner. Me and Kevin Bore scoped it after 400 rounds and I was amazed how little throat erosion there was. Took a new measurement and I was even more amazed.
It sold me on Broughton...Unless something happens to them you will never see another barrel on one of my guns.