If it were me I'd pass with this barrel fiasco from the last batch. These barrels may be from that batch and had the chambers reamed.
I have two friends buy 6.5 Grendel Barrels from Brownell's which are $289.99 and currently out of stock but you can back order. I checked both these barrels and bolts. Both were in spec and from the way the first shoot's I'd say the second will also be a shooter. Another option for a cheaper 6.5 Grendel barrel would be J&T Dist. Or maybe Blackhole weaponry which uses polygonal rifling and 264 LBC chamber.
I have two friends buy 6.5 Grendel Barrels from Brownell's which are $289.99 and currently out of stock but you can back order. I checked both these barrels and bolts. Both were in spec and from the way the first shoot's I'd say the second will also be a shooter. Another option for a cheaper 6.5 Grendel barrel would be J&T Dist. Or maybe Blackhole weaponry which uses polygonal rifling and 264 LBC chamber.