Hello, everyone, I have been making my own bullet lube since the early 1970's.  As far as that stuff Dixie Gun Works calls mutton tallow goes..save your money.  Several years ago, I obtained fat from around kidneys of lamb & 1-two year old sheep.  Rendered it down & had some of the nicest pure white, firm..almost like soft wax, tallow one could want.  Absolutly no smell.  I came across some of this tallow down on back shelf in basement..18 years old..and still firm & NO smell.  Now it's getting hard to find around here, so I ordered some from Dixie..what I got was a very soft-slushy, yellowish colored, rancid smelling crap!  Looks like I'll have to hunt around a little harder for the "good stuff"!