Re: any experience witj 6.5-06
10tw will spit the lighter 95-110gr 6.5mm bullets at screaming velocities.
Mine were in 8tw tubes and I was launching 140 Berger VLD's at 3150fps from a 28" tube.
I would do an 8.5tw on another tube since it has so much "giddy-up" the limiting factor for me was getting those bullets going so fast that they came apart in an 8tw. The 8.5tw will give you a little more margin.
Target rifle barrel life for me was right about 1500rd, depends on how you shoot it and how fast you push it but that was my limit for a sub 3/4 MOA cut off. It is a very accurate round and used to enjoy a lot of attention in long range benchrest.
Look at:
120class bullets = H4831sc
130s = H4831sc and H1000
140s = H1000 and Retumbo
155s = Retumbo
Cauteruccio makes 155's and there are some old 155 SMK's out there too.