BB15........I really didn't do anything to it, I changed the firing pin and bolt shroud..........5 minutes........and bedded it. As it is a Kevlar/carbon fiber stock, I ordered it completely finished........I tried to finish one of them years ago and learned my lesson.....never again !!! All told I doubt I have an hours labor in it..........
By the by BB15.........there is a Ti Model 700 in 300 WSM in the EE right now..........not cheap but they are light and already have fluted barrel and bolt..........under 6 lbs as is and ready to scope........
That probably would have been the best option. However I am stubborn and really wanted to build a gun for me. I guess I will see where I end up.