I'm with you about the use of 777. Personally I have so much trouble with the hard crud ring that forms in my Omega I have offered to give all the 777 I have to anyone that wants to come by and pick it up. One guy said it makes a good garden fertilizer (I may try that next). Many use it because it advertises that it is "more powerful" than black powder. In fine form fffg it might be but the ffg stuff I tried was put to shame by Black Mag'3 which actually over a chronograph performed better than 777 without the dreaded crud ring.