Hi Chris, SR 4756 is pretty slow for any shot weight under 1 5/8 oz. I once loaded up some 2 5/8" hulls with 1 1/2 oz. of shot,a trimmed back Rem SP wad and 30 gr. of SR 4756. I did not have much hull length left after adding the shot so I roll crimped it. The load worked fine but the powder did not seem to burn completely. Anyway, I went back to Red Dot for target loads and Green Dot for 1 3/8 oz. hunting loads for my short tens, and am much happier with those powders.
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