Don't use Clays
I have been handloading the .40 S&W since shortly after it was originated. Clays is way TOO FAST a powder for the .40. Many years ago Todd Jarrett gave me some of his competition ammo to try out. It was loaded with Clays powder and bulged the new Winchester cases even though the load didn't make major power factor. Just think what may happen with used brass. Try TiteGroup instead.
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Bob.
SWCA 1821
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