Jacky:
Use the same data as for "Red Dot" ... but the press bushing lists don't apply.
Promo is "denser", volume for volume. Try two bushing sizes down, as a "starting point" for your load development to get a particular weight, but VERIFY the actual weight of the charge thrown on an accurate powder scale.
Alliant markets "Promo" as a price point reloaders powder formulated from other
"surplus" powders they make (including "Select" and "Red Dot", but may contain others as well ) re-formulated to have burn/speed ballistic characteristics the same as
"Red Dot" * lb. kegs only, and no, it contains no "floor sweepings".
I've used it virtually since it hit the market here ... maybe 12-15 8 lb. cannisters so far.
I find it very consistant & reliable.