Ghost wrote:Smurfman has nailed it if you want a bolt gun. You could also add another AR upper, I'm a fan of the 6.5 Grendel.
Edit: with a good QD mount you could use your existing scope if it has adjustable turrets that have good repeatability.
I really like the idea of the Grendel a lot, but spending $500-600 on an upper when I could get an entire bolt gun for similar money, makes me want to wait on the 6.5 at the moment. Also Pat's point about traveling with a bolt gun makes sense. Not ruling it out in the future though.