chickenthief said
Not gun related only time related.

My father was a butcher right after WWII and he told me that when they butchered a horse the farmers came from miles around to get some of the fat. Properly rendered it doesnt go rancid and they loved it for horse leather gear.  

Nice information to stow away in the brain housing group.  Thank you for sharing.  It might be like neatsfoot oil which is rendered from the shin bones of cattle.  I guess there is not much there to protect them from the cold so what is there is different than the other cattle fat; designed to protect in lower temps.  

A common mistake in applying it to leather is putting on too much.  Anything more than a quick wipe with a cloth and the leather gets soggy.

Anyway, I’ll have to try horse next time I kill one.