Good point Dave we need to know what the F size they loaded with in the day. But if we use 1f powder anything but Swiss it should be at the bottom end of speed. Has anybody cronagraphed 2 3/4 drams 1f Black 7/8 oz of shot 16 guage. I'm not intrested in Pyrodex. I'm trying to see if my load is close to the load in "The small bore shotgun by Parker Bros". ch
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