Picked up a tube of this stuff at Cabela's last night ($12 + tax) after a fellow TGTer recommended it to me. Just got done treating my pair of 1943-dated Nagant revolvers with it. Ho-Lee Schidt, it made a difference. Followed the directions, let it sit for about ten minutes, then spent the next 20 wiping out all the gunk (dry patches, then a Rem-Oil wipe, then more dry patches, then a final Rem-Oil wipe). The bores went from so dark that I couldn't see the rifling to nice, strong rifling (for a gun that's 70 years old) and a near-mirror finish on what metal hasn't been pitted to hell thanks to that corrosive ammo Ivan liked back then. Has anyone else used this stuff, and if so, what was your experience?