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Front cover – The M16A1 Rifle – Operation and Preventive Maintenance by Will Eisner, issued to American soldiers in the Vietnam War. An inadequately maintained firearm will often accumulate excessive fouling and dirt within the barrel and receiver, which not only can clog up the rifling and decrease the firearm's accuracy and precision, but can also interfere with the proper operation of ...
A cleaning rod is a firearm maintenance tool that can be used to clean the inside (bore) of a gun's barrel, and is made in different sizes for use on different barrel lengths, calibers and gauges. It is a sturdy, long, thin, straight rod typically made of metal, rigid plastic or carbon fiber , and usually has a handle at one end for gripping ...
At high temperature, these flammable gasses will ignite when turbulently mixed with atmospheric oxygen beyond the muzzle of the gun. During night engagements, the flash produced by ignition can reveal the location of the gun to enemy forces [7]: 322–323 and cause temporary night-blindness among the gun crew by photo-bleaching visual purple. [27]
The soot contains potassium oxide or sodium oxide that turns into potassium hydroxide, or sodium hydroxide, which corrodes wrought iron or steel gun barrels. Gunpowder arms therefore require thorough and regular cleaning to remove the residue. [8] Gunpowder loads can be used in modern firearms as long as they are not gas-operated.
Soldiers in field conditions have often used gasoline or another handy petroleum-based solvent (such as kerosene) to clean cosmoline off stored weapons. [9] It is not recommended to use harsh chemical solvents that could strip paint, finishes, or other aesthetic/functional coatings from the gun's surface.
Pressure was applied to the liquid in the cylinder, which resulted in a uniform compression on the nitrocellulose mass, compressing it into a uniform sphere as the heat vaporized the solvents. The ball was then cooled and turned to make a uniform sphere. In light of the explosive results, this process was called the "Hyatt gun method". [59]
Solvent degreasing is a process used to prepare a part for further operations such as electroplating or painting. Typically it uses petroleum , chlorine , dry ice or alcohol based solvents to dissolve the machining fluids and other contaminants that might be on the part.
It would not harm the product it was cleaning, ignite with a spark or react with other chemicals. [13] It was used as a dry-cleaning solvent, introduced by Du Pont in March 1961 as " Valclene " [ 14 ] and was also marketed as the "solvent of the future" by Imperial Chemical Industries in the 1970s under the tradename Arklone .