Just talked to Mike Rock today (boy is he a hoot!) and ordered a 30" 1-8.3 twist 30 cal barrel in a #6 contour. I'm having it sent to Kirby to plug it on to my 700 receiver and chamber it to 300RUM. Probably a Defensive Edge muzzle brake also. The 1-8.3 twist is for the 290 gr Wildcat ULD RBBT and will not overspin the 200 gr AB. 2800 fps should be attainable with the 290 gr and a BC through the roof! This baby is going to be my long range elk rifle. The rifle should come in at 11-12 lbs scoped. Haven't decided on mildot or clicks. I'll post a review when I get early this spring. Can't wait!