Removing moly coating
- Thread starter JockStalk
- Start date
Sonicdmb73
Well-Known Member
I hate the stuff, I’m certain it was the cause if not a contributing factor in the demise of my first 243.
However I digress I got some moly coated bullets with a new rifle. I cleaned them off with my tumbler walnut shells with a bit of brasso in. It didn’t budge much till I added the brasso
Sonicdmb73
Well-Known Member
Not that I tried. But I suppose you could try the ultra sonic bath. Not sure what you would add to move the moly though
Hi,
You can use something called Bar Keepers Friend. It’s a powder like the old Vim.
Make a solution in a water tight tub. Drop the bullets it. Leave to soak for 30 secs. Agitate them a bit then rinse. Moly is gone. I picked that up off an American forum. The bullets are left dull but fine to shoot.
You can use something called Bar Keepers Friend. It’s a powder like the old Vim.
Make a solution in a water tight tub. Drop the bullets it. Leave to soak for 30 secs. Agitate them a bit then rinse. Moly is gone. I picked that up off an American forum. The bullets are left dull but fine to shoot.
Barkeepers Friend is excellent stuff, but I'm amazed that it is still allowed to be sold, basically about 9% Oxalic acid, nasty stuff, wear gloves, mixed with mild abrasive (Feldspar).
I can see that the Oxalic acid might break down the MoS2.
Moly coating was a fad that has gone now I think, shooting stuff up your barrel, at rifle pressures and temperatures, that was mostly sulphur, potentially turning into sulphuric acid compounds later, with some atmospheric moisture, never seemed like a clever idea to me, unless you had a cleaning regime to deal with it.
Maybe boiling water, a good scrub with Barkeepers Friend on a brush, more boiling water, might get some of it out of a barrel.
I can see that the Oxalic acid might break down the MoS2.
Moly coating was a fad that has gone now I think, shooting stuff up your barrel, at rifle pressures and temperatures, that was mostly sulphur, potentially turning into sulphuric acid compounds later, with some atmospheric moisture, never seemed like a clever idea to me, unless you had a cleaning regime to deal with it.
Maybe boiling water, a good scrub with Barkeepers Friend on a brush, more boiling water, might get some of it out of a barrel.
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I have had good results with brake cleaner in the distant past.
foggy
Well-Known Member
I purchased some ammonia from iron mongers and just put them in a Tupperware tub and shook till it was dissolved. I remembered reeding that ammonia dissolved moly so tried it and it does.
Sonicdmb73
Well-Known Member
That would make sense as Brasso has ammonia in it. The time they they were in before I added it compared to after. It was definitely something in it I doubt it was simply the extra abrasive.
Turkish
Well-Known Member
Just as a side note....
Has anyone else noticed that Federal are supplying all of there Power-shok ammunition - in 6.5x55 SE 140 grain - in moly coated heads?
It does state it on the packaging, but only in very small writing. Some may not have noticed.
Any reasons for this would be gratefully received.
Has anyone else noticed that Federal are supplying all of there Power-shok ammunition - in 6.5x55 SE 140 grain - in moly coated heads?
It does state it on the packaging, but only in very small writing. Some may not have noticed.
Any reasons for this would be gratefully received.
Moly coated BULLETS?
I guess some people like moly!
Switch to fusion as they are not and shoot well, in my rifle at least
CarlW
Well-Known Member
Which is why you never eat rhubarb leaves; just the stems. Leaves have decent levels of oxalic acid.
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