I bought a pound of this powder in Heavy Pistol at the last gun show - $18. Looks like it is similar to AA #9. Any comments about it?

The first of this brand I have bought. The gun show dealer carried about six different varieties of powder in 1, 4, and 8-pound containers, somewhat less costly per pound in the larger containers. I just bought the 1 pound container of Heavy Pistol to see how well it works in .357, .44 Mag, and possibly .30 Carbine. It seems to fall in the same range as 2400, AA #9, and H110. The reloading data on their website is somewhat spotty and not too comprehensive. I use 2400 and H4227 in lighter CF rifle lead bullet loads, may try it on such loads also.