I have tried quite a number of things, the ones that seem compatable are Break Free and Barricade. The presevervative you keep in your barrel affects that first shot because its in the pores of the metal and you can not get all of it out[I scrub the barrel with achohal to get all I can out before I load it]. At this point I like Break Free best ; the first shot from that one hole group I posted a few days ago was from a Triumph barrel that had been kept oiled with Break Free. Lee