I love the bore snakes, but for me there a part of cleaning, not the whole thing. I keep one in my range bag wet with ballistol for my surpluss rifles and corosive ammo. Give a pull down the barrel and I'm good to go till I get home to clean. As far as black powder I use them in all my cap lock guns and in my black powder cartrige guns, mainly to knock the worst of the crud out the barrle, then a normal cleaning rod and patches and such.
They do wad up a bit in the washer, but I put then in an old sock, tie the end and wash. I've washed 5 or 6 at a time and it's only ever taken a couple minits to untangle them, no big deal.