I'm building a 6.5saum based on my Tikka T3 Varmint 6.5x55 Swede , I have ordered a Vais brake and reamer. I will keep the original 8.7:1 twist barrel and have the bolt face opened. I would like to re-stock the rifle and was asking if anyone has used the MacMillan A-TH . This will be my go to...