You didn't say what gun this was with. And no need to swab the bore every couple of shots with the BH209 powder. I went 26 shots once before I finally swabbed my barrel. Had a hard time not believing that I didn't have to do it with BH209.
Now if you were using a TC gun, I would tell you that they have a bad habit of cutting their barrels a little too tight for my liking. It doesn't take away from the accuracy of their guns, just pizzes me off trying to load that second shot!!!