Hey if you feel like trying go ahead, you sound like your just looking for a reason to try 6.5x47, I did the same thnig not to long ago, just made up the same reason also ,I haven't time to do much testing I have a torn rotor cup, so I'm screwed, but I looked at it same as you, high BC bullets, I went with a 1&8 twist and .288 neck so If it doesnt work out I will just shoot it in 600 yard, I went with 25 inch LV Shilen #7 and light McMillan stock so it will be under 13.5, I can allways go to another stock I have for more weight if I shoot it in 600, It is on a Rem 700 action trued, I was just like you, I didn't have a 6.5 so I got one now, I shot about 20 rounds at 100 yards with no load development at all I just loaded I think about 38. something varget at .001 out and it group.6, with 5 shots, I bought allot of bullets by Hornady, Sierra and Berger, Lapua, all up to 123gr nothing heavier. I like it so far and can't wait to get my shooting shoulder right, recoil was light, seemed lighter than my 30 BR. if you got the money burning a hole in your pocket , do it, I'm not sure if we can ever have enuff guns to play with, I like my toys that go bang, Good luck.