On the Hodgen site you can download their burn rate chart. On it you will see either how close or how far away the different powders are. In a couple of instances, I have compared two different powders, from Hodgen and IMR(which Hodgdon bought) and really never saw a big enough difference to go either way. Since I grew up reloading with great Canadian powder (IMR) I tend to stay with it and have never had an issue. But again, people who use Hodgdon mainly will also endorse their preference. I have both on my shelf, also some Alliant Reloader, which is also very good powder. I am glad we have a great variety of powders to choose from !