You wouldn't happen to have a chronograph at your disposal, would you? I use velocityand of course accuracy, with a particular bullet weight, more than powder amount, of a load? So far, I haven't seen any loads, no matter what powder or bullet weight, in my Smith model 57 that doesn't shoot very well? Some are better than others but, all are what I'd consider accurate enough for hunting? And, I'd have to say the same about the accuracy in my 629-4, .44 mag gun.