RE: Omega ?
I agree that the soot comes from the primer itself. I just don"t get much from either the 777 primers or the Veri Flame. With any of the 209 primers I have tried (4 kinds) the 777 are the only ones that I can just hold the gun verticle and the spent primers just falls out ( after as many as 40 shots). With the others ( Rem Kleenbore included ) after 3 or 4 shots I have to use a primer removal tool to get them out. The fouling gets that heavy. The Veri Flame are cleaner yet but they are kind of a pain to make sure you don't drop and loose them where the 25ACP would be easier to handle, but I really don't have any problems with primer pocket crud with either the 777 primers or the Veri Flame.