I load blackpowder 10 gauge shells using 4 drams of FFG Pyrodex and 1 1/4 oz of #4 bismuth in a Federal brown hull cut to 3" for use in a #3 frame T1 30" 10 ga toplever hammergun known as "The Sinkbox Society" gun and engraved on the rib as such. Destry and I both shot this gun out of a battery in the St. Lawrence to good effect. I also used a #1 frame D3 30" 12ga toplever this year in the marais at our Quebec camp loaded with 3 1/2 drams of FFG Pyrodex and 1 1/4 oz of bismuth #5 in UMC cases. When used on the open water wildfowling the smoke is rarely an issue even for a second shot due to the usual presence of a breeze and the Pyrodex isn't quite as smokey as Hazard's Ducking Powder...Destry just gave me some RMC turned brass cases in 10 ga. I have some 10 ga UMCs I've never tried so I guess we'll have to get 'em loaded. I also have about 800 Federal paper cases in 12 ga I am going to try out as more authentic waterfowling loads for the old guns. I sure wish they still made Dupont Bulk Smokeless...
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