A 260 barrel would be nice. However, as others have stated, a 7-08 is pretty sweet too. The 260 would just be a little lighter recoil (120 grain) and better sectional density/ballistic coeffiecient (140 grain).

I would also consider what rifle calibers you load for. If you already own a 6.5mm, 7mm, 30 caliber you could have bullets already available that you could share with the Encore.