RE: 3 shots- good - 5 not so good
I am assuming your target lines are all one inch spacing? With 80 or 90 gr. T7 fff, you appear to be within 1.5" for three shots at 100 yards. I would eliminateshots 4 and 5 and try just three shot groups again a couple times. As long as you can keep you first three shots of each round as consistent and accurate as above, I think youfound a great load. Nice shooting!