browsing the alliant load data I saw a recipe utilizing a 125rg projectile and alliant 300MP powder. With a barrel length of 10", the velocity for that max load was just shy of 2000fps. I just thought "wow." that seems blazing fast for a 357 load. It was much faster than any other set of load data they had.
thoughts from anyone who uses 300MP for this application?
thoughts from anyone who uses 300MP for this application?

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