Any way you could slap a caliper on the edge of the cup to measure the wall thickness? That would be a interesting measurement.
Right now I only have Remington and Winchester small pistol primers in the safe.
Remington overall diameter of .174”, with .014 wall thickness.
Winchester overall diameter of .175”, with .015 wall thickness.
I suspect the S&B would be about the same as the Remington.
The CCIs appear to be the stiffest loading - but could simply be that outside diameter dimension.
Dimensions admittedly from a cheap Harbor Freight Digital caliper.