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castnblast · January 2, 2007, 12:14 PM

I've noted the same variations for IMR 4064 in 22-250...Theres a 2.3 gr. spread among different manuals. I chose to use IMR's data which was the hottest. Like someone else said, it's their company, they know the powder, and I figured the data on THIER website is probably the most recent...I've recently switched to benchmark because I needed a faster burning powder to get better performance out of my 55 gr. bullets. I'm not knocking the powder or IMR...It was just something my gun likes better.

January 2, 2007, 12:14 PM	#11
castnblast Senior Member Join Date: July 2, 2006 Location: Corpus Christi TX Posts: 1,148	I've noted the same variations for IMR 4064 in 22-250...Theres a 2.3 gr. spread among different manuals. I chose to use IMR's data which was the hottest. Like someone else said, it's their company, they know the powder, and I figured the data on THIER website is probably the most recent...I've recently switched to benchmark because I needed a faster burning powder to get better performance out of my 55 gr. bullets. I'm not knocking the powder or IMR...It was just something my gun likes better. __________________ VEGETARIAN...old indian word for bad hunter