Old E residue

[Dan Cash]

I just started using Old E and while pleased with the performance, I observe a couple of curious things.

First, when cleaning the bore after firing, I am getting a rust colored residue. The residue is peculiar to Old E and not a byproduct of lube, wad or neglect. Any ideas? Does this residue need to be removed? It is very difficult to clean the bore until the patch no longer shows the redish brown color.

Second, during a match this weekend, several people asked what was in my cartridges and my shooting partner's cartridges as they were getting hit with some granular material blowing back (we had a head wind on the line) from the discharge. I do not use any granular filler; only powder, fiber wad and bullet.

Thanks,
Dan