There have been at least 3 Variations of 2015 Powder . I used the original AA 2015 BR in a Custom 223 ( mostly with 40 Gr Vmaxs ) and it was excellent . About equivalent to H322 and V 133 for Accuracy . Still have some left , but already have some XMR ready to go when I run out of AA . A source I consider reliable tells me the newer stuff requires maybe 0.5 Grains or a tad more to reach the Velocity of the AA Lots , but I have not yet tried any yet .
