Ohoh! you too, I used to start out saying twenty years ago and now its more like 40 years when I start reminiscing about my younger days. My brain is getting a bit foggy but seems I recall Ballistol(water base oil) came about around 1890-1900 or there abouts.No problem. You have kinda stumbled into the "Lubrication War". It can get kinda heated, but basically it's a matter of non-petroleum vs. petroleum based lubrication/bore protectants. My position is that what has worked for me for more than thirty years (closer to forty actually) is good enough and I don't let my guns go for very long without being shot and cleaned, so Bore Butter is more of a ball and bullet lube than a bore protectant so far as it concerns me.
Ballistol is something that lots of folks use these days. I've heard good things, but haven't tried it... at least not yet.