To get the most from a 280, you really need a 24 inch barrel. Reminton used to chamber the BDL in 280 with a 24 inch barrel. Sorry to say that they no longer do. My hunting buddy has one in the Browning A-Bolt.
i really have my eyes set on that ruger. Each .280 i find with a 24" or longer barrel is ALWAYS with the black synthetic stock. Winchester doesnt even make a .280 anymore, not that i can find. so im pretty much set on that ruger. unless i find a used .280 in top shape.
They did chamber the 280 in the NEF with a 26 inch barrel. I have one in the gun case. They might have just dropped it. I think they still have the barrels on the barrel accessory program. NOT SURE.
I just checked, they do still offer the 26 inch 280 barrel. It is 103.00. The one I have really shoots well. Its not a tack driver but it will shoot 1 1/2 inch groups @ 100 yards with just about any load. I paid 190.00 for it with a 4X Weaver scope.