I am at work and don't have my reference material with me, however when Hammer Doubles was making brass that would take 209 primers their loading data with fiber wads and over shot card took more powder to get the same velocity. The pressures were alot lower as well. If I can remember when I get off the tractor tonight, I will post what 12 gauge data I have for fiber wads. Balistics Products "Mighty Ten" manual has fiber wad data for the 10 gauge if I remember correctly. Again, I will try to look it up if I can remember between now and this evening.
Harry
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