I have never hear it's an improved 2400 and I highly doubt that's true. 300-MP is new technology and from everything I've heard and read it's a good powder.
I have been wanting to try this powder in my 357 mag loads and 45 colt ruger only loads. I have held off because I have 16lbs of 2400 and because alliant hasnt done any testing in 45 colt. As soon as I see some test data in 45 colt I think I might give it a try.
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