That is completely unacceptable @10-Ring.
@Wingman had problems with his Creedmoor development with AR2009.
I saw significant variation in AR2009 with my Creedmoor, the second bottle I used was shit, dropped around 100fps from the 500g bottle I used for load development and the first hundred or so goats. So I asked Robert at Workshop Innovations to fix me up with 4kg from the same batch with a "tester" to make sure it was ok, all good. I'm 300 reloads down the track since then and every batch has been really close.
However, I don't really fully trust ADI because of that experience. Hence every time I set up for a 100 reloads, I do a fresh 5 shot chrono and drop test to double check, before I reload the rest.




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