The side of me that deals with lubricating, and trying to reduce the wear of, parts in machainery and equipment that runs in dust and dirt most of the time causes me to wonder about something concerning guns.
It is my contention, after 48 years in the fields, that most wear between metal and metal surfaces comes from dust and dirt becoming introduced to the lubricant. Roller chains that are exposed, as most are, are especially vulnerable to such contamination. Oil the chains in the morning and by lunch you have a very nice grinding compound running in the rollers, on the pins and wearing away the sprockets. Keep the dirt out of it and the life and service of parts is exponentially extended.
With that in mind, many years ago I began using a moly/graphite aerosol spray, for my roller chains, that has a very thin carrier which allows the graphite blend to get down inside the rollers. It dries almost immediately, leaving a clinging coat of a slippery, but dry lubricant. It has worked wonders to extend the life of chains, and some other areas uniquely suited to a dry lube.
My hinge pins on my doubles seem to attract the most dirt of any metal-to-metal contact area of the guns. So, my question would be, to some of you engineering inclined gents, would the lubricating properties of a moly-graphite blend be suited to the stresses that the hinge pin undergoes and, if so, why wouldn't the product be well suited for our doublegun hinge pins?
Here's my favorite of this kind of product ....... the specs can be called up for it, at the bottom of the page, for someone with the ability to interpret them to our gun language.
https://www.kimballmidwest.com/80771
