I have been reading that many shooters are annealing their cases at various levels of frequency. I am curious if anyone has established quantitatively the impact on group size, and or ES. When testing loads for accuracy would you see a material change in your groups at 200 yards. If so, how much. I just bought an annealer and I'm thinking about frequency. I have yet to feel any difference in seating pressure, ES, or accuracy yet at 4 resizings. Thanks.