From Google - Thompson Center Natural Lube 1000 Plus Bore Butter is a biodegradable all natural lubricant which contains no petroleum-based oil or additives. It reacts differently (chemically) to the combustion of blackpowder, producing far less "tar like" fouling. It can also be used to field lube bullets. Bore butter is an excellent rust preventative on external surfaces of any firearm. Being an old "front stuffer" I've learned some people love it and others hate it.Being non-petroleum, all I can say is it SHOULD do no harm ... As with all lubes and protectants, YMMV - Your Mileage May Vary. Cheers,From my experience with bore butter and muzzleloaders, I can tell you that it is a good rust preventative. Thanks for the thought, I will try it. Here in the midwest, compressing air precipitates water.BobH.Smoketown
From Google - Thompson Center Natural Lube 1000 Plus Bore Butter is a biodegradable all natural lubricant which contains no petroleum-based oil or additives. It reacts differently (chemically) to the combustion of blackpowder, producing far less "tar like" fouling. It can also be used to field lube bullets. Bore butter is an excellent rust preventative on external surfaces of any firearm. Being an old "front stuffer" I've learned some people love it and others hate it.Being non-petroleum, all I can say is it SHOULD do no harm ... As with all lubes and protectants, YMMV - Your Mileage May Vary. Cheers,Smoketown