I’m a big fan of Ballistol. It can be found here: http://www.ballistol.com
It’s good for leather, too. Supposed to be excellent for muzzle-loaders, with the black powder residue.
However,
Still have most of the can left that I bought, - that stuff really stinks, enough to make me hurl. It ain’t Hoppes #9 lemme tell ya. Hm.
I’m a big fan of Ballistol too. It’s my go-to light lube for lockwork and trigger areas, but I’ve had very mediocre results when using it as a lube in gas-operated guns.
It is, after all, a lube that pre-dates gas operated guns by a fair bit, and was designed as a “all-in-one” lube - for saddles, tack, boots, guns, etc.
It does do a bang-up job for a quick rub-down on leather boots, holsters and other leather goods.