Perhaps the most impressive rifle shooting I've seen was done with a Satern barrel. It's the only time I've ever felt compelled to ask someone what kind of barrel they were shooting. I have a button-rifled Liberty barrel by Satern which after a couple hundred rounds of break in shoots well. Personally, I'd go with a Krieger or Bartlein, if you can get one within your time frame. They're just so well-established.
When I was shopping high-end Grendel barrels two years or so ago, JP didn't have any Grendel barrels and didn't expect any anytime soon. I've never heard of anyone having a JP barrel that wasn't accurate.
When I was shopping high-end Grendel barrels two years or so ago, JP didn't have any Grendel barrels and didn't expect any anytime soon. I've never heard of anyone having a JP barrel that wasn't accurate.

