Quote:
Something I found necessary with #9 use. Magnum primers. AA-#9 is quite similar to Hodgdon's H-110 in performance and requirements. Frankly: #9 is a powder I think better suited for big bore magnum cartridges.
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I gave my answer based on the three powders listed AND my personal experience with them. That said.. here is MY take on AA#9. It gives up NOTHING to W296 / H110...has less flash, downloads a heck of a lot better AND Does Not Require Magnum Primers. I can recite my pet load with AA#9 and Xtreme 158 gr. bullets..they are full throttle. CCI and WSP are the preferred primers but Fed will do.
Now to the three powders listed.....I gave my nod and my reasons. YMMV. To thge OP.....how many others laid out the pros. and cons? Yeah.. the original question.