I had a mullerworks carbon done in 6.5 prc too. It's on a Tikka long action, had the freebore extended to about 230k for 145-156gr bullets, well see how it shoots. The smith shot 5 dif powder charges 3 shots per with 85 bergers in the 22cr, all 15 were in an inch, I think it'll be a shooter........Awesome! I've been looking into working with them- especially for a carbon rock creek or mullerworks. Keep us posted on how it shoots!