Yes I was swabbing with the loose Pyrodex RS as well.
What about Grouse's bullets ever try any?
Well I actually did shoot some today. They were .452 diameter 250 grain hollow points. I used Harvester Crushed Rib sabots. As since these bullets liked large powder charges, I shot them with 120 grains of Pyrodex RS.
Since you asked, I went and took a picture of the group. Now this is the first time I have every shot these bullets so other then the fact they loaded beautiful, and seemed to group well, I have no other opinion at this point. I have no idea of the velocity 120 grains of Pyrodex would give, or how the bullet would perform on game animals.
I made a mistake in the label on the photo. They were not 200 grain. They were 250 grain. I want to do a lot more testing with these, but only got twenty of them so I have to be selective in my testing.