Sorry to read that Vihtavuori powders may be discontinued. I have used their stuff for about 45 years by now. the name was then Kemira and the powders came in small yellow ti cans. My standard hunting loads for both the 6.5x54 Mannlicher-Schoenauer and 6.5x53R Mannlicher (5 rifles overall) are 40grs VV N160 behind a 160gr Hornady round nose for 725 m/s = 2375 fps from a 55cm = 22" barrel. BTW, RWS and DWM 6.5x54 M-Sch velocities were always from a 45cm = 18" barrel. They wanted to promote their own 6.5x57(R), on which velocities were taken in a 65cm = 26" pressure barrel. But the 1940 RWS Manual contains a table "barrel lenght and velocities" of their factory loads on page 225. If you study this table, the 6.5x54 M-Sch loads are always faster than the 6.5x57 loads, if the same weight bullets are used from the same length barrels.