I built a 6.5-06 in Sept 2015.
Shilen Select match #3 taper Stainless barrel 6.5mm bore 26" long ratchet rifling
Cut inch off each end = 24", cut Mauser threads for Dumoulin receiver, cut 6.5-06 A square chamber with 0.005" headspace, cut crown at 11 degrees and chamfer ID and OD of muzzle.

I got Forster to hone out 25-06 FL die to 0.292" neck. For double the usual neck honing fee.

I got Lee to cut a 270 mandrel from a collet neck die down to 0.262", but leave the top 1/4" alone to fit a 270 collar. For triple the usual mandrel resize fee.

120 gr Nos Bal tip moly with 50.7 gr IMR-4166 powder 3.34" , Win 30-06 brass, that QL estimates at 3236 fps 65 kpsi using IMR-4895 in the QL library.
9-23-2015 range report:
Chronographs at 3197 fps
Averages 0.92" 5 shot groups at 100 yards.
I sighted it in to 600 yards.

I have built ~ 40 rifles for myself, and the 6.5-06 has been the best. I will use that reamer again.

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway
The man who makes no mistakes does not usually make anything.-- Edward John Phelps