Saw this shooter,s video a couple of years ago. Never heard of Ballistol before, now it is all I use for my Parker Hale 1861 & 1860 rifles, Harpers Ferry pistol, Lymann Deerstalker, Pedersolli .45 Pennsylvania flinter, 1891 Trapdoor, 4 cap & ball revolvers,& half a dozen other black powder cartridge guns. Used to swear by Bore Butter, but some of my rifles shot,cleaned and put away for a year plus have shown no signs of any rust or corrosion. Live in any area where humidity can reach 100 % for weeks at times, and it has protected all my firearms including Webley revolvers to Ruger No 1 rifles. A real plus is it is very wood & leather friendly too. Still use Breakfree CLP, Hopps,FP10, G96,Barnes CR 10 when needed, but Ballistol does the rest. Been at this game for over 50 years & just wish I found it sooner. This fellas video around 23.25 started it all for me.