Bill wrote:used some Moly coated 100gr BT in a 250 Savage once, clocked 3340fps out of a 24 inch tubed L579. Had no trouble srcubbing it out, previously owner told me to never leave the stuff barrel in the barrel. I havent found the need to use it since
SCJ429 wrote:Shooters want use moly to get a bit of extra speed, I found I lost speed, why do you want to try moly coatings?
Stix wrote:What am i missing there gentlemen...?
I just googled this boron stuff, & look what it says...copied & pasted from Wikipedia site...
Boron nitride is a thermally and chemically resistant refractory compound of boron and nitrogen with the chemical formula BN. It exists in various crystalline forms that are isoelectronic to a similarly structured carbon lattice. The hexagonal form corresponding to graphite is the most stable and soft among BN polymorphs, and is therefore used as a lubricant and an additive to cosmetic products.
So from this i followed the link to the graphite page...
Graphite (/ˈɡræfaɪt/), archaically referred to as plumbago, is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure. It occurs naturally in this form and is the most stable form of carbon under standard conditions.[i]Under high pressures and temperatures it converts to diamond. Graphite is used in pencils and lubricants. It is a good conductor of heat and electricity. Its high conductivity makes it useful in electronic products such as electrodes, batteries, and solar panels.[/i]
Now it doesnt state what these pressures are--or i havent read that far---but surely this cant be good for barrels--well thats my immediate thought anyway...
johnblackpigs wrote:Interesting points of view. I insert the prepped case neck in moly coated brush just to lube the inside of the neck, the difference when seating a bullet is quite noticeable. Suggest it gets away cleanly on ignition, Would love to have crony to make a comparison.
Stix wrote:What am i missing there gentlemen...?
I just googled this boron stuff, & look what it says...copied & pasted from Wikipedia site...
Boron nitride is a thermally and chemically resistant refractory compound of boron and nitrogen with the chemical formula BN. It exists in various crystalline forms that are isoelectronic to a similarly structured carbon lattice. The hexagonal form corresponding to graphite is the most stable and soft among BN polymorphs, and is therefore used as a lubricant and an additive to cosmetic products.
So from this i followed the link to the graphite page...
Graphite (/ˈɡræfaɪt/), archaically referred to as plumbago, is a crystalline form of the element carbon with its atoms arranged in a hexagonal structure. It occurs naturally in this form and is the most stable form of carbon under standard conditions.[i]Under high pressures and temperatures it converts to diamond. Graphite is used in pencils and lubricants. It is a good conductor of heat and electricity. Its high conductivity makes it useful in electronic products such as electrodes, batteries, and solar panels.[/i]
Now it doesnt state what these pressures are--or i havent read that far---but surely this cant be good for barrels--well thats my immediate thought anyway...
Flyer wrote:Water won't wash moly off bullets once it is applied (bonded) correctly. In fact, the wet coating process is preferred for molybdenum disulfide (MoS2) for this reason. Moly is not water soluable, but a slurry can be used to coat the bullet and if correctly done will not come of easily as it becomes impregnated into the copper after tumbling.
https://en.wikipedia.org/wiki/Molybdenu ... te_note-37
https://bergerbullets.com/official-moly ... g-process/
http://forum.accurateshooter.com/thread ... d.3922894/
Etc.
I haven't tried the 140 ELD-Ms in my 6.5CM, but the 143 ELD-X shoot great. Not as slipery as the ELD-Ms, but make a great dual-purpose target/hunting round. They can often be bought quite cheap as well.
First shot was a sighter and the next five went into .350" at 100m
123gr Lapua, four shots at 100m
143gr ELD-X left, 123gr Lapua Scenar right
SCJ429 wrote:Shooters want use moly to get a bit of extra speed, I found I lost speed, why do you want to try moly coatings?