After reading a bunch I decided that the original Johnson was mostly a mix of naptha and wax. I got the naptha and some paste wax, mixed them just looking at consistency. I ended up with about a 50-50 mix and then mixed that 50-50 with X-lox. The result seems to work really well, seems to dry better than mineral spirits. I've tried it on several bullets and haven't seen any issue with leading. I tried the Lee 158 grain Tumble lube bullet with this mix and it has been great after several hundred 38 spcl loads. It sure is easy to mix up and use. More experimenting needed though. I just like the naptha but I still need to do an exact mix with the mineral spirits and see if I can tell any real difference in the stickiness/drying of the bullets. Might also try some carnuba "insulator wax" and see how it compares to the Johnson's paste wax.