I am looking to build one also. I have a SA Remington action with a Wyatt extended magazine box that will let me seat to 2.95 COL. I'm thinking it would make a great 600yrd deer rifle. I was going with a 6.5-284 but it looks like I would get more powder and less of the bullet in the case with a 6.5 SAUM. Maybe a 26" 1-8 twist Remington mag taper barrel from Pacnor with 6 flutes. I have a Bell and Carlson Alaska Ti stock and a kahles Helia C 3x10x50 sitting on a shelf. If someone has the reamer I could rent it would be great. Don't have all the funds set aside yet but will by late fall. Saving for my 2013 deer lease now. I like to have next year's lease money set before this year's season.