WD-40 for cleaning guns? - Page 3

WD-40 for cleaning guns?

This is a discussion on WD-40 for cleaning guns? within the Related Gear & Equipment forums, part of the Defensive Carry Discussions category; Only two items in my tool box, WD-40 and duct tape. If it shouldn't move but does = duct tape If doesn't move but should ...

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Thread: WD-40 for cleaning guns?

  1. #31
    Distinguished Member Array Stubborn's Avatar
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    Only two items in my tool box, WD-40 and duct tape.
    If it shouldn't move but does = duct tape
    If doesn't move but should = WD-40

    But not on my guns...Hoppe's...Mobil 1 oil, little dab of white lithium grease on slides and rails.
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  2. #32
    Senior Member Array mano3's Avatar
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    Folks,

    Thanks for the great advice on this one! You probably saved my bacon!!!

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  3. #33
    VIP Member Array Superhouse 15's Avatar
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    Quote Originally Posted by ppkheat View Post

    There is a lot of internet chatter that it can adversly affect primers. I actually heard that first in the 1970's, that rumor has been around a long time, I have no idea if it's true or not? Surely someone has done a conclusive test?
    I submerged a bunch of ammo in WD40 for about 5 weeks. I used everything from rimfire to LRN, range FMJ, Blazer, and premium JHP. A few, but not all, of the rimfire .22lr failed, everything else fired fine.

    I also submerged the same kinds of ammo in salt water, #9, and CLP. IIRC some of the Blazer cases got pitting and the #9 discolored some of the brass cases but the failure rates were about the same. I think only one centerfire round failed from any of the tests. It was a .40 FMJ.
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  4. #34
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    Quote Originally Posted by Superhouse 15 View Post
    I submerged a bunch of ammo in WD40 for about 5 weeks. I used everything from rimfire to LRN, range FMJ, Blazer, and premium JHP. A few, but not all, of the rimfire .22lr failed, everything else fired fine.

    I also submerged the same kinds of ammo in salt water, #9, and CLP. IIRC some of the Blazer cases got pitting and the #9 discolored some of the brass cases but the failure rates were about the same. I think only one centerfire round failed from any of the tests. It was a .40 FMJ.
    Interesting, thanks for posting some input.
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  5. #35
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    If you like oil, Singer Sewing Machine oil is very high quality and inexpensive, if you don't mind the gals looking at you in the notion dept at wallyworld.

    If you like a dab of grease on rails, high temp, high pressure engine assembly lithium grease with graphite from the auto parts store in a syringe works.

    For cleaning, Gunzilla seems to drag a soaked patch through the bbl with more friction and does a better job than Hoppes #9.

    Miltec 1 is a good coating.

    WD-40 leaves a nasty residue that gums everything up and attracts grime. All traces of water deep in the works will disappear after a few hours in a slightly warm oven. You might want to do this when she's at the mall.
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  6. #36
    Member Array Gunsmoke16's Avatar
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    It's not good for guns, especially for storage as it is a penetrating oil. The gun would eventually rust. CLP Breakfree is probably the cheapest. I like the Lube 1 that has the Slick 50 additive stuff...you can take you gun into the rain or wet environments (or sweaty hands like mine) and it doesn't rust. On the old .45's I've even used regular old solid car wax on the magazine to keep them from rusting. If you did acquire a rust spot, erase it with a pencil, flip it around and lead it really good and go over it with touch-up blue pencil and then oil well...blends right back in and prevents it. On the other hand, WD-40 supposedly has some nerve killing properties and old folks like to rub it on their knees/elbows because it kills the nerves for about 3 days and they don't hurt anymore. Personally I think it's the best red wasper killer next to Ortho and flat-out knocks them dead in a hurry.

  7. #37
    VIP Member Array dukalmighty's Avatar
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    Quote Originally Posted by crue2009 View Post
    would never recommend using WD-40 on any gun..over time,will gum up like glue..too many good lubes and cleaners to use over WD-40...
    I have used some at the range when I forgot my gun lube,but would never use it as a cleaner/lube and let it sit,over time could become sticky enough to keep your slide from running smooth causing a FTE/FTF situation
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  8. #38
    Senior Member Array kb2wji's Avatar
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    DONT USE IT ON GUNS. It's a penetrating oil. Not worth the risk of having it get into your primers. Small risk, but why take it?

  9. #39
    Senior Member Array mano3's Avatar
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    Just picked-up some Hoppes #9 today!
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  10. #40
    Senior Member Array DaveJay's Avatar
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    Quote Originally Posted by BugDude View Post
    Gunzilla holds up very well, and doesn't attract dust. What's not to like.
    +1... Love it!
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  11. #41
    Senior Member Array mano3's Avatar
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    Quote Originally Posted by BugDude View Post
    Gunzilla holds up very well, and doesn't attract dust. What's not to like.
    Been reading the posts about Gunzilla here. Seems like a great product.
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  12. #42
    Member Array T_from_Fla's Avatar
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    I witnessed the ill effects WD-40 has on guns first hand. A friend of mine used it on some guns that were handed down to him. He really isn't a shooter so that may have contributed since the guns sat for a while. He has a Winchester .22 semi-auto and a Colt Mustang .380 that he sprayed with WD-40, again, these guns sat for a while after he did this. The action on the .22 would stick in the rearward position when pulled and the slide on the .380 would literally return in slow motion when released. I asked him if he had ever shot them or done anything with them. He told me "all I did was spray them down with WD-40 when I got them." WD-40 and guns = GUMMED UP.
    "It's better to have it and not need it, than to need it and not have it."

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  13. #43
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    OK everyone! WD40 should never, ever be uses on a firearm, especially one intended for SD! WD40 is a penetrating oil so it is designed to get into all those really tight places like rusted nuts and bolts and oh yeah... PRIMERS!!!!! I'm speaking from experience, WD40 will soak through a casing ans destroy the primer and it will happen at the worst possible time!. My uncle took a bullet in the leg a few years ago because of just that. I even heard of people destroying old ammo by spraying it down with WD40.

    Don't believe me? Google "wd40 and guns" and see what comes up...
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  14. #44
    VIP Member Array Superhouse 15's Avatar
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    Quote Originally Posted by Maxwell47 View Post
    OK everyone! WD40 should never, ever be uses on a firearm, especially one intended for SD! WD40 is a penetrating oil so it is designed to get into all those really tight places like rusted nuts and bolts and oh yeah... PRIMERS!!!!! I'm speaking from experience, WD40 will soak through a casing ans destroy the primer and it will happen at the worst possible time!. My uncle took a bullet in the leg a few years ago because of just that. I even heard of people destroying old ammo by spraying it down with WD40.

    Don't believe me? Google "wd40 and guns" and see what comes up...

    It will indeed kill a primer if it gets to the mixture in it. As part of the testing I did I put a drop inside several primers. The WD, salt water, and #9 all killed a bare primer outside of the case. My testing, and something similar but less extreme one on the Box Of Truth pretty much proved that you can not deactivate old ammo by spraying it with WD40.
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  15. #45
    Ex Member Array F350's Avatar
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    Quote Originally Posted by Maxwell47 View Post
    OK everyone! WD40 should never, ever be uses on a firearm, especially one intended for SD! WD40 is a penetrating oil so it is designed to get into all those really tight places like rusted nuts and bolts and oh yeah... PRIMERS!!!!! I'm speaking from experience, WD40 will soak through a casing ans destroy the primer and it will happen at the worst possible time!. My uncle took a bullet in the leg a few years ago because of just that. I even heard of people destroying old ammo by spraying it down with WD40.

    Don't believe me? Google "wd40 and guns" and see what comes up...
    This was from the 70s, a deputy was in the habit of spraying down his duty revolver with WD-40 after a night of bad weather and re-holstering. He was found dead next to his cruiser, revolver next to him with 6 firing pin hits on 6 dead rounds. WD-40 NEVER comes close to any of my firearms!

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