Can anyone tell me if there is any difference between these 2 powder and if there is a difference, other then burn rate, what would that be. I should mention that I would be reloading for my Rem. 700 308 Tactical with the 20" bull barrel using 165-175gr bullets. Also, according to Hodgdons burn rate chart AA4064 is 2 numbers slower then IMR-4064 but also 2 numbers faster then Hodgdons Varget. Thanks
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