You can download the free AA manual from their site.
I found that AA2230 gave the best velocities out of 4 different powders that I tried in a 18" Satern barrel with a rolling thunder comp and it was by a decent margin faster. The closest to 2230 was BLC(2). That's my "backup" powder. Both group well with the best group going to BLC(2) but 2230 was right on it's heels. IMR 8208XBR got the best in consistency by a long shot (it's just insanely consistent) but the groups weren't any better. Not worse, just not better and the velocity was 200 FPS slower at max charge. I suspect it will do better with the heavier weight bullets but haven't worked any up. The moral to all of this is I just couldn't find a better powder for 55gr loads and I tried really hard.
I found that AA2230 gave the best velocities out of 4 different powders that I tried in a 18" Satern barrel with a rolling thunder comp and it was by a decent margin faster. The closest to 2230 was BLC(2). That's my "backup" powder. Both group well with the best group going to BLC(2) but 2230 was right on it's heels. IMR 8208XBR got the best in consistency by a long shot (it's just insanely consistent) but the groups weren't any better. Not worse, just not better and the velocity was 200 FPS slower at max charge. I suspect it will do better with the heavier weight bullets but haven't worked any up. The moral to all of this is I just couldn't find a better powder for 55gr loads and I tried really hard.
