WB
I've used AA7 but I'm away from my load book now.
Monday, January 01, 2018, 17:54

It's a good powder, very powerful for the volume. Great in 10mm too. AA#9 is in the came class as the other three slower magnum powders. I've used 2400 in everything from .32 Mag. to .500 Nitro Express, really, and found some use for it. It's name comes from it's .22 Hornet load prowess, and it's a fine .410 shotgun propellant too.


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