Yes, I should of stated that the calibers I'm using these powders in were .44 mag,.41. mag, and .357 mag. I've all buy quit using Bullseye and use Win. 231 for my lighter loads. I've never been able to tell much difference between 2400 and Hodgdons H110. On the other hand Win 296, with it's "no variation" loading warning made me deside against this one? If I had to make a guess, I'd have to say Elmer Keith played a big part in my desicions on these powders. They have worked for several decades but, are very dirty, and make quite a mess if a large quantity of rounds are shot. And take extensive cleanup afterwards.