Aparently the military has been using it with good results, however buying it retail it is extremely expensive. I was looking for something that would work well with corrosive ammo, and black powder. I was trying to locate a jug of this spendy stuff and called the local black powder shop. They told me not to waste my money, and get a jug of Formula 409 for $2.39 per quart, as opposed to about 30 bucks. The formula 409 works excellent, kills all the salts and cleans really well. I inadvertently discovered that it will also clean wood if you are not careful, but I took off the stock and did a complete job with the 409 on my 1863, took all the nasty black stains off and shows all that nice pretty grain, then I just wiped it down with linseed oil.
Now on the other hand...the MPro7 Ultimate Gun Lubricant claims to be 4 times slicker than teflon, and a little drop goes a long, long way. It is a water based oil, and I have been using it exclusively to lubricate all my black powder barrels after cleaning. I have a 12 gauge wool swab exclusively for lubing my sidexside, and a 20 gauge wool swab for my old 58 Springfeild. The stuff is really excellent, but the cleaner needs to come WAY DOWN IN PRICE.