Accuracy loadings for WC845

[thunderflash]

Anyone have a pet .223 /.556 "accuracy" load for this old "Higginson" powder, for both the 55grain FMJBT, & the 68Gr. Hornady HPBT match bullet , In an AR-15 w/1in 9 inch Bbl. I know it,s a H335 equivalent & should be 5% under the Hodgdon.

 

[pac_man]

For the 55 grain I use 25.1 grains of wc845, I have no load data for the 68 grain.

 

[SuperCub]

I have some here, but haven't used it much yet. I do know that it has been quite a bit faster than H335, for me anyways.


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[p-17]

I've used that powder in the .303, .308 and .30-06 so far, and I've found that IMR 3031 loading data is a pretty good match. This corresponds to about 5% faster an H335 loads, by the way.