[cnote]

Anyone ever heard this before?
Per Les Baer (quoted by Ayoob in the Premier II .45 review)
I recommend cleaning the gun every 500 rounds of copper coated bullets, more often with lead or dirty powders and immediately after use with moly coated bullets. Let the gun sit for a day after them and its instant rust.
Do you agree with this theory, if its true than why would anyone use them?
I don't doubt his expertise, but this seems extreme.

[Action Pistolero]

I've been using moly coated bullets for the past 6 years and have not had a problem. At the most, my guns will be shot a thousand rounds before cleaning. Some of them sit in the safe for months before they are cleaned.

[trevoro]

I have shot many thousands of rounds of moly coated Bear Creek .45 in three different guns with no rust. I cleaned the guns about every 500 rounds, but this was sometimes months in between cleanings.

[jmorris]

You might take a look at this

http://www.schuemann...i...=67&mid=445

I too am a fan of nothing down the barrel except bullets concept.

[cnote]

anyone else?

[waxman]

cnote, on Aug 22 2009, 09:13 AM, said:

anyone else?

I think it is BS. I have over 12,000 down the pipe of my SV just this year, I clean it about every 2-3 k, and there has never been any rust, leading, mold,rot, deterioration, scabbies, lice ,tics,std's or any of the other crap all these people keep dreaming up. If you want to shoot expensive jacketed bullets, be my guest. I love my Moly, and will continue to use them.

[open17]

Pretty much all I shoot in my single stack gun and about half the ammo through my 625 is loaded with
Bear Creek 230 RN Moly. No rust.

[lmccrock]

I shot a few thousand Billy bullets through my Para, and no rust. I guess only a Les Baer barrel will rust? I mean, I think the only part of my Para that has never rusted is the barrel. Not using moly now, generally I load whatever I get my hands on, which is lately not moly.

Lee

[DougCarden]

Les Baer uses Kart Chrome moly steel barrels for his guns, at least he did...Most gun owners are not "shooters", like us....and I could easily see some owners shoot a couple hundred rounds through a gun, NOT clean it, and then put it away and 6 months later call the gun manufacturer and bitch about the rust in the barrel....
I think it is safe to say most of us here dont get a lot of our info from the Gun rags......
Just another perspective....shoot what you want!
DougC

[oldtrooper]

+1 for Kevin and Waxman. I did however notice a tick on one of my guns after leaving it on a mat for several minutes when confirming the zero on three pistols.

[MoNsTeR]

I shoot moly (BC, MB/BBI) in a bunch of guns...
Glocks - plastic/Tenifer frame/slide, Tenifer barrel - no rust
SV-framed limited gun - chromed carbon steel frame/slide, stainless barrel - no rust
Caspian-framed single stack - blued carbon steel frame/slide, stainless barrel - no rust
Kimber - stainless frame/slide, stainless barrel - no rust (on the inside anyway, the slide rusts from skin contact, "stainless" my ass)
Beretta - stainless frame/slide, stainless barrel - no rust

So, yeah, I'm guessing if the problem is real at all it's related to rust-prone barrels.

[rhyrlik]

DougCarden, on Aug 23 2009, 09:28 AM, said:

Les Baer uses Kart Chrome moly steel barrels for his guns, at least he did...Most gun owners are not "shooters", like us....and I could easily see some owners shoot a couple hundred rounds through a gun, NOT clean it, and then put it away and 6 months later call the gun manufacturer and bitch about the rust in the barrel....
I think it is safe to say most of us here dont get a lot of our info from the Gun rags......
Just another perspective....shoot what you want!
DougC

I read somewhere that moly absorbs moisture and becomes acidic. Guns with carbon steel barrels will rust faster if allowed to sit in a humid environment.

[JThompson]

jmorris, on Aug 18 2009, 08:48 AM, said:

You might take a look at this

http://www.schuemann...i...=67&mid=445

I too am a fan of nothing down the barrel except bullets concept.

Shot 150K through my last barrel and it was a tack driver to the end. (Jacketed 9 major) Never cleaned it once... I trusted Will and was not disappointing.

This post has been edited by JThompson: 23 August 2009 - 10:17 PM

[gino_aki]

I'm wondering if the "moly" we pistol shooters are referring to is actually the same type of "moly" that's applied to jacketed rifle bullets? My Precisions seem to be more of a plastic coating and the company does refer to it as a polymer rather than a "moly" coating.

[Bear23]

I've shot moly for the past 3 years, even at the last two nationals. Never ever have i had a problem. STI, schuemann, SV, Kart, Nowlin, makes no difference, i've never had any rust.

[HSMITH]

Moly IS hygroscopic. You HAVE been warned. What you do about it is up to you.

[MoNsTeR]

gino_aki, on Aug 25 2009, 02:39 PM, said:

I'm wondering if the "moly" we pistol shooters are referring to is actually the same type of "moly" that's applied to jacketed rifle bullets? My Precisions seem to be more of a plastic coating and the company does refer to it as a polymer rather than a "moly" coating.

This.
I'm sure the poly coatings have MoS2 as an ingredient, but it's certainly not the same formula used to coat rifle bullets.

[21 shooter]

I use the Bear Creek bullets in a 9mm G17. I usually clean the barrel somewhere around the 1,000 rd. mark or when it just looks really dirty. I'm not an expert by any means, but I think the Glock barrel helps as far as the rust issue is concerned.

[jmorris]

Quote

Moly IS hygroscopic. You HAVE been warned. What you do about it is up to you.

This is true but we are talking about two different things. The Moly “tumble” kits are junk and your bullet is coated in moly.

The solid film lubricants used by manufactures are different I have an MSDS for one of the coatings used and it only contains 10% molybdenum disulfide.

[Baer45]

I own a fare amount of Les"s guns and have grown to really respect his opinion on anything that goes "bang". Like a lot of folks making guns that hear all kinds of internet chatter and rumors day in and day out he can sometimes be a little "short" in his explanations. You can pick up the phone and call Les Baer custom and I am sure he will be glad to talk with you and explain his position...I am sure it is based on experience as he is very knoweldgable on metals and I believe the forging process of his recievers is actually patented. He does use Kart barrels made to his specs and then further customized in his shop...I like the theory of Moly and one of my best benchrest buddies swears by them...

[G-ManBart]

Baer45, on Nov 28 2009, 11:54 PM, said:

I like the theory of Moly and one of my best benchrest buddies swears by them...

Yeah, but the kind of bullets and moly used by benchrest shooters is different from pistol "moly" bullets. They're using jacketed bullets that are treated with moly (impregnating or some other term). Pistol moly bullets are lead that are coated with a moly mixture. The other thing is that benchrest folks are trying to prevent copper fouling buildup so they have to clean their barrels less frequently during a match....that isn't what folks are dealing with using pistol bullets.

[Jaxshooter]

In this case I would consider who quoted it.

[Action Pistolero]

I'm using jacketed bullets in my pistols that I coat with one of those "junk" moly kits.

I demand 1.5" groups or better at 50 yards. I use the moly to extend my barrel life. I used to get 30k from my barrels and now it's 60k. An added benefit is that the moly leaves a nice silver ring around the bullet holes making shots easier to find and sometimes increase your score by 2 points.

All of the barrels that I've been shooting moly in are from Kart. I'll agree with Doug on this one.

[AriM]

well I dunno what kind of moly Les is shooting, but I shoot Precision and Bear Creek and put a few hundred a week through my gun....and have never had ANY issues with rust....BUUUUUUUUUUTTTTTT, the moly builds up on the feed ramp, bbl. throat and the rifling grooves....and is an absolute nightmare to remove....I can feel/see the accuracy start to drop off when it get's cold and after 200 rounds or so....but the odd thing is this....if I keep firing the gun and keep it up to temperature....the accuracy remains the same....it's only when I let it sit for a few minutes that the moly hardens and starts to play games with me....I am going to stop shooting moly after this last case of precision is burned up....I am going to be casting my own....and to hell with everyone elses ideas about what the perfect projectile is....NOTHING will be as good as a bullet cast specifically for my barrel using a lube that is ideal for my climate and needs.....going to start with a .455 mold and sizer dies to cover .451 - .454....as my bbl. changes and the climate/lube/load changes my bullet can do the same....moly is just another band-aid.....totally unnecessary, but I have yet to see it "rust" anything....FWIW I also shoot my moly out of a Kart barrel....and I NEVER read "gun magazines".....

[RufDog]

AriM, on Dec 10 2009, 12:49 PM, said:

well I dunno what kind of moly Les is shooting, but I shoot Precision and Bear Creek and put a few hundred a week through my gun....and have never had ANY issues with rust....BUUUUUUUUUUTTTTTT, the moly builds up on the feed ramp, bbl. throat and the rifling grooves....and is an absolute nightmare to remove....I can feel/see the accuracy start to drop off when it get's cold and after 200 rounds or so....but the odd thing is this....if I keep firing the gun and keep it up to temperature....the accuracy remains the same....it's only when I let it sit for a few minutes that the moly hardens and starts to play games with me....I am going to stop shooting moly after this last case of precision is burned up....I am going to be casting my own....and to hell with everyone elses ideas about what the perfect projectile is....NOTHING will be as good as a bullet cast specifically for my barrel using a lube that is ideal for my climate and needs.....going to start with a .455 mold and sizer dies to cover .451 - .454....as my bbl. changes and the climate/lube/load changes my bullet can do the same....moly is just another band-aid.....totally unnecessary, but I have yet to see it "rust" anything....FWIW I also shoot my moly out of a Kart barrel....and I NEVER read "gun magazines".....

You mean to tell me magazines such as "Guns go Blammo" put out inaccurate & misleading information?????? Thats just crazy!