RE: Omega +777= CRUD!
You can get Black Mag 3 from a cabelas as well. My buddy had the same problem with his Encore. Many have said that switching to a different primer helped them. (not as hot burning primer). He switched to black mag and still has a little problem with accuracy.
Look at the American Pioneer Powder as well. I am trying that next, even though I have never had a problem with 777. I want to compare accuracy with the two powders.
The last two years I have only shot 3 shots with 3 dead deer so I probably shouldn't change but it's fun tinkering with the ML.