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i have been looking for bushing chart for promo powder want to drop 17 or 17.3 what size bushing.
 

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Use the Red Dot bushing chart as a starting point. While Promo loads the same as Red Dot, grain for grain, it is not the same density. You may have to go up or down a bushing size or 2 from the Red Dot chart, depending the Promo lot, but it will get you in the ball park.

And it is because of the inconsistency of the density of Promo from lot to lot there is no bushing chart for it.
 
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