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Old June 29, 2019, 10:50 PM   #2
Fingers McGee
Senior Member
 
Join Date: March 19, 2008
Location: High & Dry in Missouri Ozarks
Posts: 2,113
I'd use a 20 grain spout. I gave up on all the hoopla on concerning T7 grains out of a spout compared to FFFG of real BP regardless of manufacturer. IIRC Hodgdon loading data used to say that to equal a particular load of real BP, you should reduce the T7 load by 15%.

Here's is a link to the the Hodgdon T7 & Pyrodex data:

https://www.hodgdon.com/wp-content/u...anual_2008.pdf
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Fingers (Show Me MO smoke) McGee - AKA Man of Many Colts - Alter ego of Diabolical Ken; SASS Regulator 28564-L-TG; Rangemaster and stage writer extraordinaire; Frontiersman, Pistoleer, NRA Endowment Life, NMLRA, SAF, CCRKBA, STORM 327, SV115; Charter member, Central Ozarks Western Shooters
Cynic: A blackguard whose faulty vision see things as they are, not as they should be. Ambrose Bierce
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