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Its also in the Speer #12 Manual page 342. I would try on the web The Speer or Hodgon site. If not contact me with the bullet weights you intend to use and I will send you the data from the manual.
Take Care
Tick
This is solid advice - use .30-06 data for the same bullet weight and your pressure will actually be lower in the 8mm-06. I have been loading for this cartridge for a number of years and have had no issues, and fine accuracy, with this method...
There is actuall a reloading manual you can buy from Ebay that includes the 8mm-06 and the 338-06 cartridges only. It lists data from just about every mfg such as Sierra, Nosler, Hornady, Speer etc.