I have pushed the 80.5 Bergers to within 70fps of 3000 with MR2000. It will drive stuff fast. But I find it to be pretty sensitive to temps. Going to load some 85.5 with Varget and test next weekend. Hoping to get at least 2800. IMO, none of these bullet powder combos are viable unless it is with a temp stable powder. Doesn’t do me any good to load max + at 70deg only to have a stuck bolt at a match in the summer where temps hit 90+