12 gauge .690 rb slug loading data needed

flintlock

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I just ordered a lee load-all press and .690 round ball mold to reload 12 gauge slugs.In all the reloading manual i own,none give any loading data for .690 rb.I want to make reload with smokeless and black powder.Does anybody can indicate me where to look to obtain theses data?thanks
 
With .690" in the 12ga. I assume you will have to use a wad, I use a .715" rd. ball and I cut off the petals of a trap load wad, and use the same data as I would in the trap load, ie: 19grs. of Red Dot, For Black Powder reloads I use the same ball and case although I prefer paper cases, 90grs. FFG, and make up the diff. in space with a card wad and felt wads, followed by a roll crimp. Both loads go about 1200fps. The best advice i can give is to use felt wads in your BP loads that have been soaked in BP lubricant as this eases the cleaning chore by a mile. If your over powder card wad is a good fit it will prevent powder contamination, enjoy.
 
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