That is a nice group. What I like about Varget is that you should be able to repeat that grouping come spring, summer, and fall because it is not temperature sensitive like a lot of other powders are. I am assuming flitz that it was cold and windy (where isn't it?) and these conditions are difficult. What it should do for you is to give you the confidence that you now have a good load and will be able to make the shot when needed. When you get the chance, try this load at 200 yards and I think you will like what you see.
Good shooting ...