My understanding from reading Hogdgon literature is that ADI powder that will be packed as Hogdgon is held to tighter a tolerance than ADI packed versions, I did a lot of load development with 2208 and Varget
in my 6mmBR's for shooting F class,
The difference between the two was not significant but was measurable Varget had lower ES and SD average velocity was close around 25 fps faster with Varget
For practical use at 1000 yrds there was not enough difference between them to matter the atmospheric conditions wind and light changes were more of a problem
plus driver error,
Just buy as much of the same batch as you can, some of the well healed F class shooters buy enough of their favourite powder to outlast their new barrel same with bullets.
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