Originally posted by Garand
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Today, there have been tremendous advances in lubrication; it's tribology, the science of lubrication. Years ago, an engineer was chosen to be the lubrication engineer; nowadays, they studied tribology.
This is an good read on sub zero weapons lubrication.
"stone cold reliability to ARs down to roughly -65°F, and for 9mm handguns at -55°F."
Interestingly, there is a 10° temperature differential between an AR and a 9mm pistol. However, they make no claims for its effectiveness at other temperatures.
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