I had never noticed this before. bear fat is supposed to be great for making pie crust. I did render some down once but not to oil. It set up when it cooled. Took bird seed and filled a small dish with it and made feeder blocks for the winter with it. Had to keep them frozen or they would melt. Did the same with deer fat. Thing I noticed was that melting it, some seperated but most the fat stayed in a lump. Just left it on till it all melted.
One of the most important pieces of equipment that you will take hunting is a good quality pair of optics and they take some care to give you the performance that you want. So here are a few tips.
Use some alcohol and cheese cloth to clean the lenses. I will usually pick up an extra cleaning kit from my optician when I have my eyes examined.
Don't touch the lens with your fingers. If there is a stick or a bug on them blow it off.
Use the lens covers. They are there...