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Old September 20, 2010, 09:24 AM   #1
mineralman55
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Join Date: September 29, 2009
Location: deep south
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WC852 In "Other" Calibers

I've got a bunch of WC852 and wanted some first hand reloading information from those who have actually used it. Mine is likely from a "waivered" lot which means it is a bit slower than the government wanted it to be for normal 30-06 rifles but is good for machine guns rounds. I estimate it's burn rate to be somewhere around H414 to H450.

It is fantastic in 25-06, and I've used it with great success in my M1/30-06 with 168 and 173 grain bullets, but at reduced loads (please don't tell me it is too slow, I've shot 1000s of rounds in my Garand with this powder, perfect functioning and no bent op rods). The data that came with it said use the given loads "as is", but I found the recommended 55.5 grains under a 180 grain bullet was waaay too much. More like 50-52 grains is appropriate.

Has anyone used WC852 in either a 308Win/M1A, or a .223Rem/AR15? I found a milsurp burn chart that said in a .223 using 26-28 grains of WC852 with a 63 grain bullet was good, and using 46-48 grains with a 173 grain in a .308Win was good. I'm looking for real world experience reloading with WC852. Anyone got any?
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Old September 20, 2010, 04:24 PM   #2
Loader9
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Join Date: July 29, 2008
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Because of the incredible variations in the burn rates of the WC 852 lots, most of the folks I know won't have it anymore. There is a WC 852S, WC 852M, and a WC 852s. That puts the burn rates any where from H380 to IMR 4831 for the same powder depending on the lot number. If you just want to use military powder, look at WC 846 or WC 844.
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