Want to really ruin your gun ? 

Spray it with  WD 40  !

 

WD 40  is thought to be a good lubricant.  Keep it off your guns.  If left on a firearm, it will glue the action together.  If sprayed under the caps on a scope, it will penetrate and fog up the scope, and ruin it.  Many gunsmiths talk about having to fix firearms that have been damaged by the use of   WD 40  !

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Sunday, 1 Feb 2004. At lunch, after church, was just talking about how bad WD 40 is on a firearm, and found this. Paul


Gunsmith's Opinion (WD-40 TERRIBLE CHOICE!!!)

Posted by wolverine on Jan 27 2004


Anyone with WD-40 in their gun room should get rid of it right now, stop reading this post, and either throw it away or put it in the garage. I have taught this to all my Gun-Smithing students, on the first day of class. WD-40 has no place anywhere near guns. I don't mean to offend anyone - but we see guns on a daily basis rendered unsafe or inoperable by wd-40.


This "lube" may work well when it is applied but as it evaporates over the next few days, or weeks, it forms a thick, sticky varnish over all surfaces.

 

This condition in a Remington or similar trigger system can mean the gun will fire as soon as the bolt is closed. This can mean you just shot your hunting partner in the back of the head.


This was the root of more than a few lawsuits and a bolt lock recall on older Remington's. If you use WD 40 as a storage-lubricant, it gums things up so much that the bolt can be closed with the safety on.

 

If there is WD-40 in the trigger, your gun will just go off when you take the safety off. Remington recommends NO lube in their triggers, none in any condition.

 

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and another post:


wd 40 and scopes

Posted by reel hook on Jan 28 2004


The post on WD 40 is correct. WD 40 is nothing more than refined kerosene and will absolutely EAT the o-ring out of a scope which will cause it to fog real quick.



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Closing Comment

 

I once told my father that WD 40 was not good, on a stored rifle. Dad was sure I was wrong. He habitually sprayed WD 40 on his firearms, and left them in storage.

 

Dad promptly went into his closet and brought out his bolt-action 22.   He tried to pull the bolt back, and could not. WD 40 had gummed it up. I had to use a gun oil- solvent to open it.


It took me quite a while to get that rifle un-jammed, and two visits to get the trigger back in working order. Don’t use WD 40 on your rifles or pistols.


Paul

 

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Many stores sell penetrating oil specifically designed for firearms.