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View Full Version : Moly and other coatings- update me



msorwan1975
10-08-2013, 04:49 PM
Hi All!

Been a decade since I competed and built rifles as a profession. For NRA high Power and Long Range not BR....
Life has taken a turn now and am getting back into a passion and (hopefully business) I used to have.

Bear with me...

What is the current opinions on moly coating? In the 90's and early 2k's it was in vogue though nothing seemed to be proven. I did it, won't again but thats me.

Some things in the accuracy game have changed as always, others remain the same. So I'm getting a feel for whats out there and going on again.

Thanks and God bless,
Mike Orwan
NRA High Master:
Long Range (old school earned, iron sights at 1k yds)
XTC
Master Sporting Rifle

Greyfox
10-09-2013, 08:43 AM
Looks like nobody wants to take the time for an answer, so I'll try a bit. Moly has pretty much fallen out of favor due to build up problems and a tendency to attract moisture. Hexagonal boron nitride (SP) and titanium disulfide (WS2 or Danzac), if I got the chemical names right are the two most use currently for bullet coating.
I use the WS2, not for better accuracy, but to avoid cleaning during a match. I've used it for several years both for matches and prairie dogs without any problems. My personal opinion is that is extends barrel life because it reduces the need for cleaning. The use of this coating and cleaning with Patch Out/Accelerator means that my barrels rarely see a brush of any kind. Bore scopes tell me that the barrels are free of copper and carbon.

YMMV,
Rick

Asa Yam
10-09-2013, 02:11 PM
W is the chemical symbol for titanium.
"W" is the symbol for tungsten (from "wolfram" - German). "Ti" is the symbol for titanium.

msorwan1975
10-09-2013, 03:42 PM
Interesting responses and thank you very much. My experience with moly was...it made a mess, LOL.

I'll research as best I can the other coatings which I am not familiar with.

regards,
mike

virg
10-09-2013, 05:36 PM
What I see on the line at major matches such as the "Blue Bonnet" in New Braunfels, Tx., the coated vs non-coated bullet count is about even. Many top shooters use the coated bullets and others don't. Increased barrel life in my mind is questionable. A friend of mine who shoots service rifle (they don't have time to clean) did not experience increased barrel life with moly. His barrels still gave up at about 5800 rounds.

msorwan1975
10-11-2013, 07:37 AM
What I see on the line at major matches such as the "Blue Bonnet" in New Braunfels, Tx., the coated vs non-coated bullet count is about even. Many top shooters use the coated bullets and others don't. Increased barrel life in my mind is questionable. A friend of mine who shoots service rifle (they don't have time to clean) did not experience increased barrel life with moly. His barrels still gave up at about 5800 rounds.

This mirrors my previous experience. So basically if it makes you feel good do it.
Also 5800 for a service gun ain't bad. Always replaced mine at 4000 or roughly once a year since I shot regularly.