I've been using 5.8 - 6.0 gr of WSF with a 180gr jacketed bullet almost as long as I've been loading 40 S&W, and that's been since 1991. It is a good powder that meters very well, no chance of a double, good loading density. Burns clean and accuracy is great. Max is 6.2 gr per Winchester's guide.
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" I said, good DAY! "
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