I went to FMJ for accuracy and easy cleaning.
Aahh, ease of cleaning. After buying an old gun (pre-war...WWI that is) I found myself taking a research journey to learn about Frankford Arsenal Cleaner No.18 recognized by many as the revised formula reinvented on the battlefield by Major C.E. (Ed) Hatcher in WWII at the Battle of the Bulge. A formula based on proven principles incorporating 2 polar and 2 non-polar solvents.
Commonly known as Ed's Red (ER), It is adapted from one in Hatcher's notebook for "Frankford Arsenal Cleaner No.18" but substituting equivalent modern materials. The following is paraphrased from various web resources from my own journey looking for sperm oil. More on that oil in #2 below. Take the time to read to the very end for the nexus to copper and lead (as well as old time corrosive primer) fouling. Enjoy...
The original Ed Hatcher formula called for equal parts of four (4) ingredients. #'s 1 - 3 below are necessary + #'s 4 - 5 are optional.
1. > Pratts Astral Oil a.k.a. Kerosene/Diesel fuel. [Note: Pratts Astral Oil was nothing more than acid free, deodorized kerosene] "K1" kerosene of the type normally sold for use in indoor space heaters.
2. > sperm oil [a.k.a. pre-WWII version of automatic transmission fluid (ATF). Jojoba oil and sperm (whale) oil are molecularly identical. Jojoba is technically a liquid wax. Today, a synthetic ATF includes organometallic antioxidants and surfactants found in a branded substitute Drexon. [Drexon ATF, sperm oil and Jojoba oil are highly suitable as an all-purpose (C-L-P) cleaner-protectant-lubricant]. Note: sperm oil was a special kind of oil obtained from the head cavities of sperm whales. It is chemically different from ordinary whale oil, being mostly liquid wax. It had different properties and applications than regular whale oil therefore was more expensive.
3. > "aliphatic mineral spirits," a.k.a. known simply as mineral spirits, alias turpentine; a petroleum based "safety solvent" used for thinning oil based paints and also widely used as an automotive parts cleaner. It is commonly sold under the names "odorless mineral spirits," "Stoddard Solvent" or "Varsol". Greek root word (aleiphar, fat, oil) also known as a non-aromatic (unlike acetone below) it will NOT evaporate, nor liberate any volatile organic compounds (VOCs) into the air.
4. > acetone; an (optional) ER ingredient, is an aromatic organic solvent which provides an aggressive, fast-acting solvent for caked powder residues. Caution! It is NOT to be used in enclosed spaces lacking ventilation since acetone will evaporate, liberating volatile organic compounds (VOCs) into the atmosphere unless containers are kept tightly closed when not in use. The Battlefield ER [alternative for "Frankford Arsenal Cleaner No.18" is still effective without the acetone, but just NOT as fast acting].
5. > Lastly, another optional ingredient, 200 grams of anhydrous lanolin added per liter. Lanolin is a lipid/fat produced by the sebaceous glands of sheep. Anhydrous from the Greek root word meaning "without water".
Apparently from the chemistry, it is unlikely there is anything in Ed's Red which chemically "dissolves" copper fouling in bores, but it may do a better job removing carbon and primer residue than anything else which is "safe and commonly" available.
Reportedly, exclusive use of "ER" reduces copper deposits, because it removes the old impacted powder fouling which is left by other cleaners, which reduces the abrasion and adhesion of jacket metal to the bore surface, leaving a cleaner surface condition which reduces subsequent fouling.
The experience of others indicates that "ER" will actually remove metal fouling...if you let it "soak"... so, it is actually the surfactants which do the jobe. Be patient.
Sent using Tapatalk