While 2 1/2 data is the ideal, I have found that using 2 3/4 data rolled crimped into 2 1/2 length hulls works well. Sometimes I discover the load does not fit, but most times it does.
I simply stick to sub 8,000 PSI data as a rule of thumb. I have found Hodgdon’s website a decent source and there. I found their 1 1/8 loads for federal paper hulls and Remington Fig 8 wads and International powder good. I also like their Green Dot, PB, and SR 7625 data, though finding the later powders if you do not already have it is hard.
