Since you are reloading yourself have you considered using a roll crimp? A roll crimped 2 9/16th (2 1/2) inch shell has the same interior dimension (capacity) as a 2 3/4 in. folded crimp so you can use any published 2 3/4 inch load data with a slight decrease in chamber pressure. I prefer Unique but there are some nice Green Dot loads that produce moderate chamber pressure and reasonable velocities.
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