Moly Fact or Fiction

Falar

Falar

Gunny Sergeant
Full Member
Minuteman
Mar 28, 2009
980
55
Midland, TX
#1
I'm considering moly coating, specifically getting this kit:

http://www.midwayusa.com/viewProduct/?productnumber=162840

I've read all of the threads, pros, cons etc and the only thing that concerns me are the claims of the sulfur combining with moisture to pit/corrode barrels. Is this true or not? I live in a very humid area so this would be a concern. However, with the amount of people using moly you think there would be some reports of barrel corrosion but I've yet to find any posts here or anywhere else proving that it can/does happen.
 
#2
Re: Moly Fact or Fiction

Never had any problems with working with moly. And I am not anal about cleaning my gun after each use either.

To save you a couple of bucks, just get the powder. That is all I use and just throw my bullets into a empty 1lb container of powder with a very small amount of moly and let it run in the vibratory case cleaner for 30 minutes to an hour. I take it out and wipe down with a rag and your done. The small 4oz jar will last pretty much forever. I have molyed over 5k bullets and the jar is still full.
 
#4
Re: Moly Fact or Fiction

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Bacarrat</div><div class="ubbcode-body">Never had any problems with working with moly. And I am not anal about cleaning my gun after each use either.

To save you a couple of bucks, just get the powder. That is all I use and just throw my bullets into a empty 1lb container of powder with a very small amount of moly and let it run in the vibratory case cleaner for 30 minutes to an hour. I take it out and wipe down with a rag and your done. The small 4oz jar will last pretty much forever. I have molyed over 5k bullets and the jar is still full. </div></div>

Thats good to know since you are also in sub tropical Houston.
 
#5
Re: Moly Fact or Fiction

I picked up a separate bowl for my RCBS tumbler to moly my boolits. A quick wash & dry with iso alcohol beforhand may not be necassary, but I do that to them before tossing them in the tumbler with just a pinch of powder. Works like a charm...
 
#10
Re: Moly Fact or Fiction

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427Cobra</div><div class="ubbcode-body">HbN does everything better than Moly with none of its negatives </div></div>

Is the coating process the same, load bullets + powder in a tumbler and tumble away? I'll start looking for a source on this powder now.
 
#12
Re: Moly Fact or Fiction

My bullets go straight from the box to the jar with a little bit of moly powder. No cleaning or anything. They come out looking like jewels in about an hour... or whenever i remember to stop the tumbler. lol

I am interested in some HbN though. I might try it out on my next barrel.
 
#14
Re: Moly Fact or Fiction

Try varying proportions of moly/HBn/whatever mixed with your propellant. Skip the other steps and still get the benefits, whatever they might be, of such dry lube additives. A number of BR shooters developed this technique and swear by it. Ask around on BR Central.

I figure that essentially all propellants already have all the dry lube additive I could want, in the form of antistatic individual granule graphite coatings. My thinking is that managing a bore's dry lube status is tough enough with just the one lubricant, let alone adding additional ones...

Greg
 
#15
Re: Moly Fact or Fiction

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427Cobra</div><div class="ubbcode-body">.5 micron is what I use, BB's, peanut butter jar, and a RCBS tumbler, I also use a steaming pan to separate the BB's and pills </div></div>

Ironic that I start a thread about moly and I'm leaning towards hBN. IS there any reason you use .5 instead of .7?
 
#16
Re: Moly Fact or Fiction

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Greg Langelius *</div><div class="ubbcode-body">Try varying proportions of moly/HBn/whatever mixed with your propellant. Skip the other steps and still get the benefits, whatever they might be, of such dry lube additives. A number of BR shooters developed this technique and swear by it. Ask around on BR Central.

I figure that essentially all propellants already have all the dry lube additive I could want, in the form of antistatic individual granule graphite coatings. My thinking is that managing a bore's dry lube status is tough enough with just the one lubricant, let alone adding additional ones...

Greg </div></div>

They're actually mixing it with the powder? Or are they putting it on top of the charge?

Thanks
 
#17
Re: Moly Fact or Fiction

This is an email I got from the company in Canada before my last order. I asked what they recommended for bullet coating.

Ted

You can use N70 and 0.50

N70 is more superior and is more expensive.



MK-hBN-N70: US$840/10 lbs + Shipping

MK-hBn-050: US$750/10 lbs + Shipping.



Payment: by credit card

Delivery: within 1 day from receipt of payment



Thanks



Ken Katakia
Lowerfriction Lubricants
(Divn. of M K Impex Canada)
6382 Lisgar Drive

Mississauga, Ontario L5N 6X1
CANADA
Phone: 416-509-4462
Fax: 905-824-1259
 
#20
Re: Moly Fact or Fiction

Lower Friction sells 1 lb "sample" bags. Runs about $80 shipped from Canada. I bought a pound and shared it around on the Hide in 1/4th pound packages. I tried both the 70 nanoimeter and the .5 micron and I think that the .5 works easier...not nearly so subject to flying around the room when the top is off. As I disremember, a micron is a thousandth of a millimeter, and a nanometer is a thousandth of that...pretty fine stuff! I use a little in alcohol to lube the inside of case necks using a Q-Tip. Makes great lock lube too...doesn't stain the door facings. JMHO
 
#21
Re: Moly Fact or Fiction

It is chemically possible and there has been reports of extreem cases of corrosion. However your barrel will corrode without Moly if you don't take care of it properly.
If you clean and lubricate after a shooting session then the risk is extreemly small no bigger than normal corrosion issues.
However if you don't clean much at all and store the gun in humid damp conditions or hunt with it in wet conditions often the presence of Moly in the barrel can increase the speed of normal corrosion .
I did tests on two barrels many years ago and shot one with uncoated and the other with Pure Moly coated . Both barrels were never cleaned or lubricated at all. The barrels were stored in the presence off moisture. Eventually after about 6 months I inspected the barrels and cleaned them . The Moly barrel showed more signs of corrosion on the patches than the uncoated barrel and felt rougher to clean . I did not have a bore scope back then.
I have been using pure self coated moly for over 20 years and have not had any major corrosion problems however I take normal cleaning and lubricating precautions as the shooting conditions dictate. I store in conditions protected from excess moisture and heat .


 
#22
Re: Moly Fact or Fiction

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427Cobra</div><div class="ubbcode-body">I use about 5 grians per 100 155Scenars, unless my math is wrong that will do about 140000 Scenars, or basicaly a lifetime from 1 lb
</div></div>

LOL so then 10 lbs lasting till the next ice-age is possible.

A little sure goes a long way.
 
#23
Re: Moly Fact or Fiction

I don't like the idea of mixing additional substances with the powder. It could have a negative effect on the safety of the powder. In the past graphite was used as a powder coating and still is however it was figured into the chemical makeup from the start.
Extra coatings could alter burning rates and antistatic characteristics in a negative way.
It could also be used as another reason for more restrictions on handloading if something goes wrong in the future.
Sure it may well coat the barrel but is it a safe idea taken all around?
 
#25
Re: Moly Fact or Fiction

I got the Lyman moly kit.
In the instructions it says that if you are using small caliber bullets, you need to find a small screen.
The screen included is ok down to ~.257" bullets.
The ceramic media is ~ 6mm.
If I have 10,000 of .224" bullets to coat, this will never do.

So I stopped using their ceramic media and started using Copperhead BBs as a medium.
To separate, I have a magnet that was the stator in a starter/generator for a small jet engine. The magnet is in a jug. I pull on a rope in the jug and all the BBs fall away from the outside of the jug.

If there is no lead contamination, bullets can be coated in minutes.
It is not like vibrating brass overnight for cleaning.
After a while, a guy learns to avoid bullets with exposed Lead tips.
 
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