As stated, cleaning really hasn't been a problem on either powder.

Here is how I do it: If I can get good accuracy with 777, I use it because I don't worry as much if I can't clean the rifle that night. I still clean it by the next day though. Also as stated, I believe more guns are accurate with pyrodex than with 777. I have one gun that shoots great with pyrodex, but not with 777, but none that don't shoot accurately with pyrodex.

I use only loose powder whichever powder I do use. Cheaper and can be tweeked.

That said, since I don't shoot an enormous amount, I tried BH 209 in my Omega and it shoots great, so that is what I use in it now.