GRF,

One more thing...If you have a lot's of 270 brass on hand and are thinking of building a 6-06, look at the 243 Catbird instead. It's a 270 Win case simply necked down to a 6mm. It holds a bit more powder, so is a tad hotter than a 6-06. Would be a fun round to shoot. 105 Bergers at 3350+, would be scary good!