6.5 Swede Custom Barrels

E A BROWN sells the 6.5 Swede barrel off the shelf...However they also sale the 6.5 BR barrel off the shelf too.

Does anyone know as far as ballistics go which one is better..Are they about the same? Would be easier to get 6.5 Swede ammo and brass...6.5 BR brass, dies, etc etc etc could really end up costing you more?