Swiss has been a favorite of BP cartridge shooters due to requiring less of it to equal regular goex on a grain to grain equal measurement. You can get more "pop" into a casing. Olde Enny looks to be an attempt by Goex to market a powder to compete with Swiss in the cartridge shooter market. Olde Enny has a lot of "smalls' in the grind. Those who have tried it in a front stuffer say that they drop an "F". In other words, if using FFF goex, go to FF Olde Enny and 1.5 if using FF and so on.good ole boy said:Can you tell the difference from the two if they weren,t in marked cans?Can you also tell the difference between them from the smell,residue and smoke?