Once upon a time before they stopped making SR7625 I used the powder for 10’s , 12’s , 16’s , 20’s and 28’s . Someone posted an IMR data manual from the 1980’s I think it was that had data for the SR and PB powders . If you can find it that oughtta answer your question .
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Parker’s , 6.5mm’s , Mannlicher Schoenauer’s and my family in the Philippines !
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