Well , all the data I have found shows 6.9 grs of Unique is max allowed for the std. pressure of the 44 spl . I have read several times that his load was about 20Kpsi . I have shot it quite a bit in the past and it is a great combo . If I'm not mistaken though , Skeeter was using the " Keith " swc (245gr) Lyman 429421 , not just any 240 gr swc . He mentioned it often in his writings . It will make a difference in the pressure using his 7.5gr load of Unique . The Keith bullet has a shorter shank allowing a little more case volume vs the std. 240 gr swc .