Hornady Reloading Manual - 9th Edition - lists 160 grain Interlock RN with 6.5 Creedmoor - p. 299 - has 10 powders listed - Maximum Loads pretty much identical to those shown on table from Ganderite in Post #3. Hornady used 24" 1-8" twist barrel, Hornady cases, and Fed 210 primers (p. 296). Calls out C.O.L. at 2.740" (p. 299) for that bullet. The main difference, I think, is the Hornady book lists Win 748 and Win 760, instead if the Surplus WC powders in the table above.