Tonk, You're leaving alot on the table if your 338-06 is only doing 2650 with 210s and 2950 with 180s. Better whump 'em up some.
Factory Fusion 200s have gone as high 2705 from my 338Fed Tikka.
Handload 185 TSXs are at 2870 in my Kimber.
Even the factory 180AB loads were good for 2740.
When I had a 338-06 with 23" bbl my 210 loads were quite a bit above 2700.
Just thinking you should still be able to do alot better than you are. You are at 338 Fed levels at the moment, but you are correct in saying the 338-06 SHOULD do better than the 338 Fed