Originally Posted by
Tall
Universal has been discontinued by Hogdon, along with Titegroup and several other powders. It has been years since any was made.
I can't recommend that you substitute one powder for another. You need to follow a recipe for any caliber. I can say that Unique seems like a very fast powder for large rifle calibers like you are wanting to reload for. Unique has been available around here in any case. Load charts are for comparison purposes - not meant for what you are proposing.