for interested parties, here is Turnbull's data for the cartridge:

http://www.turnbullmfg.com/client_images/catalog19872/pages/files/475TurnbullReloadingData_3.pdf

I'm having good luck with Varget, and continue working up loads with the Woodleighs. Also will try cast bullets.

"...the designer of the .270 Ingwe cartridge!..."