DIY moly coating

[ovenpaa]

We have been moly coating our own for a couple of years now. Tonight’s batch:

[Dangermouse]

Wait a minute, this is all starting to look a bit serious for next weeks shoot!

I have decided that moly coating fits into one of those unnecessary tasks, which you believe by doing it, you are going to perform better on the day.
Having read a bit from both sides of does it work or not, I think I will leave this exercise for a later stage in my career if at all.

Having said that....
Last week I took possession of a Primer pocket uniformer (using it in my battery drill) and a flash hole de burring tool,
I am currently working my way through 600 new and used cases with these tools and have been amazed at how much brass has been removed. I am convinced that my consistency will have been greatly improved by taking the time to do this task,

DM

[ovenpaa]

Wait a minute, this is all starting to look a bit serious for next weeks shoot!

Every little bit helps :)

I have decided that moly coating fits into one of those unnecessary tasks, which you believe by doing it, you are going to perform better on the day.
Having read a bit from both sides of does it work or not, I think I will leave this exercise for a later stage in my career if at all.

Come over the darkness Luke............ :lol:

Having said that....
Last week I took possession of a Primer pocket uniformer (using it in my battery drill) and a flash hole de burring tool,
I am currently working my way through 600 new and used cases with these tools and have been amazed at how much brass has been removed. I am convinced that my consistency will have been greatly improved by taking the time to do this task

As you say, It is all down to feeling good about what you do and believing it makes a difference. I am sure I do things that others would roll their eyes and equally I shake my head at some of the antics of others.

Tomorrow the cases get primed and filled and everything gets put together in anticipation of a good shoot.

[artiglio]

Ovenpaa,

Much shinier results than i achieve, what method do you use? if you don;t mind sharing.


phil

[Sim G]

What does the coating do to barrels?

[Jenks]

What does the coating do to barrels?

Sim..

I have never used Moly coated bullets, was tempted but read one or two things that put me off.

A quick whiz around and I found this article…


http://www.shootingsoftware.com/moly.htm


From the article...

.Serious barrel damage can result from moly buildup (caking). All barrels will "cake" with moly but a barrel prone to copper fouling will collect more moly at fewer round intervals. Moly usually builds up "rings" at certain points in the bore. If the build up becomes sufficiently severe bullets fired through the restriction will expand the bore at these ring points. This is why some highpower shooters have wrecked barrels after more than 100 rounds.


Jenks

[ovenpaa]

Ovenpaa,
Much shinier results than i achieve, what method do you use? if you don;t mind sharing.

I use a Lyman kit that comprises of two bowls that fit on my Lyman 1200

http://www.sportsmanguncentre.co.uk/pro ... 1384%2729/

It was a lot cheaper when I got mine! 120 minutes in the ceramic media with no more than an eighth of teaspoon of moly powder followed by eight minutes in corn cob media to remove any surplus. I have Lidles plug in timer so no need to worry about when to turn them off.

There has been a lot of talk about pro's and con's of moly coating. We used it because of Christels 22C - she needs moly coated bullets to allow a full case of powder without excessive pressure. I was unsure about the effect of the moly but first the five shots out of the barrel were .190" at 100 so we knew the load was good and that was about it for load development. The problem was sourcing SMK 80's that were moly coated so we did our own. For some reason I tried moly on 155's through the AI one day and liked the results so stopped with them.

Cleaning wise I thoroughly copper strip my barrel at 100 rounds regardless of how it is shooting, if it is a shorter day I clean as normal. Christels cleaning is very different, she brushes the chamber and then patches through 2-3 times with methylated spirits followed by light oil and then meths again. Job done. I then thoroughly copper strip her barrel at 200-250 shots or when she starts to see the start of vertical stringing.

Her cleaning routine makes me cringe :?

We both use Truflite barrels and I use a borescope to check the barrel and chamber to make sure everything is OK.

My non moly cleaning is very different.

[artiglio]

Cheers Ovenpaa,

Using the same kit, I'll do some more but pay more attention to timing, do you have any particular regime for cleaning bullets before coating?
also have been wondering about investing in a borescope for a while now, what model/make do you use?

regards phil

[ovenpaa]

Using the same kit, I'll do some more but pay more attention to timing, do you have any particular regime for cleaning bullets before coating?
also have been wondering about investing in a borescope for a while now, what model/make do you use?
l

Preparation consists of opening the box and slinging them in, usually 100 at a time. I just avoid any form of contact with my fingers. Can you post some pictures of yours up? I think the biggest secret is not to put too much moly powder in as you can end up caking the bullets. Rip some kitchen tissue up into strips and tumble it with the ceramic media for a while to remove the excess, you can do the same to clean the corncob.

The borescope I use is actually an Olympus endoscope with fibre optic light source, the head can be remotely tilted in all directions like something out of Alien and can be set to different focal lengths. It came with battery pack and numerous shiny bits in a huge Samsonite case.

Probably an over kill but a mate hooked it out of a skip when his company was taken over and we came to a very modest financial agreement for it.

Have a look on eBlag for endoscope and borescopes, they do come up from time to time, often for sub GBP50.

[artiglio]

Ovenpaa,

You were right, too much moly in mix, gave bullets a much longer tumble in media and alls well, will clean up ceramic media before next lot.

phil