Murray Brook
Silver $$ Contributor
Used it in my 30/378 with 200 gr+ bullets.Works great. In the cartridges I've used it in I found it to be in burn rate between Retumbo and H-870. Closer to 870.
Gets the 105s up to 3600 in my 6x284.
One does not chamber up a 6x284 with barrel life in mind.So, I guess you have a locker full of barrels for it? That is smokin'.

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