Froggie,
For information, in addition to what's on the powder company sites, the February 2015 issue of "Handloader" magazine published .327 Federal Magnum loads developed using a Ruger 7 1/2" barreled Single Seven. There's data for 100 gr. Speer Gold Dot HP, 100 gr. Hornady XTP, A-7 and A-9. If you're interested, give me your email address and I'll send you that data.
George