There is no current published load data for WST and 9mm from Hodgdon nor in older 1999-2005 load data from Winchester. Interestingly as you posted, there are plenty of WST load data for 40S&W and 45ACP in current/older load data from Hodgdon/Winchester. Lyman #49 only shows WST load data for 45ACP. Perhaps Winchester/Hodgdon could not get consistent enough pressures/accuracy from WST for 9mm compared to other powders.
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