Well, any loads you get anywhere are just a quick and dirty reference guide. I know alot of people like hard rules for loads, but you can't do that. Some guns I have had with custom barrels, I could not reach max hodgdon loads without pressure signs. And some guns, I have went well past max loads maybe 2 grains or so with no pressure signs. Those load books are ok butage is not the issue but validity of the data. But if it was me, I would buy several sources from bullet and powder mfg. to make my decision.

What I do when loading a new wieght, is get out all my sources, Sierra, Nosler, Lyman, HornadySpeer, IMR, Hodgdon, Alliant, etc. I write down all the max loads, and applicable powders. and make a decision from there. I give a powder a try. I won't hesitate to move slowly past max load if I see promising results. Just move slowly.