Matt, you need to call Dave Tooley. His information is on 6mmBR.com under Top Gunsmiths. If yo do go with the 338 Yogi, go with a 32" barrel. You will be able to get the 300grn MK to shoot at 3000 to 3100 fps. I don't know who has a reamer other than Dave, so you will really need to call him. He is a great guy. He has built two rifles for me and they were aweosme!!!