Greetings Bowdawg,
What I believe is the original "Moose Milk" formula is printed in the book, MUZZLE LOADING SHOOTING AND WINNING WITH THE CHAMPIONS. 1973 copyright. ( Everybody should have this book).
The following formula is found in the Wilburn L. Terry article titled, Shooting The Round Ball Bench Rest Rifle.
1 oz. Water-soluable oil
1 oz. Lestoil (or Pine-Sol)
2 oz. Hydrogen peroxide (regular first-aid type)
12 oz. Water
This is a very good bore cleaner and is also excellant for wiping the bore between shots. However, it does not contain any rust inhibitors. After the bore is clean and DRY, the bore must be greased or oiled to prevent rusting.
Water-soluable oil can usually be purchased at a machine shop where it is used as a tool/material coolant during machining operations. The oil looks like any other oil until it is mixed with water, then it turns white, hence "Moose Milk". This oil/water mix coolant solution is commonly called "Pigion Milk".
For the past 20 years or so I have simplified my cleaning solution requirements by using BLACK-SOLVE exclusively, great stuff.
Hope this will help you.
Best regards, John L. Hinnant