kirk ethridge & everyone - boron nitride?

[jim b.]

Kirk, I seem to remember you writing some time ago about your experiments with coating bullets with boron nitride. Would you mind letting us know your findings about this? I'd surely appreciate it.

I first heard about the use of boron nitride bullet coating when I was reading about David Tubb. I'd love to find out what everyone has learned about the effectiveness of boron nitride bullet coating, how to apply it to bullets, where to get it, and exactly what specifications the material should fit (particle size, etc...). Thanks much.

Jim

 

[Kirk Ethridge]

Boron

The boron is a bullet coating (slick) that my help in several ways. For instance my 8 twist hart (6XC) was bad to wreck jackets when it warmed up in the day. I had not chronographed this load but heres what what happened. I tuned up an awesome load at 100 yds and sent the rifle to my buddy to test out to 500 yds. He first shot early in the morning (I am shooting BIB 98's 6mm bullets,,,Randy Robinette). I had bought the 8 twist to shoot 115's from DTAC but it just didn't work. Randy's flat base bullets shot awesome. Any ways. the rifle did just awesome at 200, 300 and 500. So much so David asked me to chamber one just like it for him. I told him to wait, knowing that 8 twist is usually too fast for these bullets. long story short, David when back in the afternoon after it warmed up. and the bullets would not make it past the 200yd berm (I'm sure the little extra temp put the load just over the top of what the bullets could stand) . they were shedding the jacket as Randy thought might happen on the 8 twist barrel.. I have since coated the bullets and get the same if not better accuracy, and my bullets all make it to the 500 yd target.

I've not been doing anything different as far as cleaning, though the barrel may clean up a bit easier. Boron will probably replace moly. they look like they have been in a white powder. (just like they have). basically they look like your car waxed before you pollish off the wax. White just seems not to be as messy when you get it on you.

I bought a moly application kit from midway, (vibrating tumbler, with i think its a ceramic media) I used the same directions as for moly, and substituted the boron. It is also good bag lube, much better than baby powder.

Some body chime in and tell where i got it? I'l look it up when i get back from work. i work night shift and have to leave now.

by the way, Randy's 94 grain bullet don't shed a jacket even though not coated. (and seems to shoot as well as the 98) David, my shooting buddy is sure his XC with these coated 98's is the best shooting rifle he's every had or shot. (he had small group in Bradenton, with one of my rifles). I hope he does well at the Hickory ground hog shoot next month. i beleive he has a "hummer" shooting just plain awesome groups at 500. many time 5 shots touching..... time will tell....

I like Boron, and never did really like moly,

Kirk

 

[Dave B]

Boron nitrate

I have 1 or 2 cans of spray that I got at the oakridge nuclear lab in Tenn. I think they was using it for a release agent. Send me a pm with a ups address and I'll send you a can.
Dave B

 

[David Halblom]

Kirk, The Boron Nitride powder is

a release agent for many high temp casting applications. It is made by GE and comes in many forms, usually powder, but also suspended in a spray application. A couple of us in Iowa have been playing w/ it and are having similar results to yours. I will post a URL for the tech data on it when I get home to that computer. Info is not on my laptop. It is definitely cleaner than Moly or Danzac

 

[jim b.]

boron nitride

Thanks much, fellas. And I'll keep my eyes on the lookout for that URL. I really appreciate the help.

Jim

 

[David Halblom]

Here is the URL

a release agent for many high temp casting applications. It is made by GE and comes in many forms, usually powder, but also suspended in a spray application. A couple of us in Iowa have been playing w/ it and are having similar results to yours. I will post a URL for the tech data on it when I get home to that computer. Info is not on my laptop. It is definitely cleaner than Moly or Danzac

for Boron Nitride. I do not know if the business has been spun offf from GE or they just renamed it. Just choose ceramics and then boron nitride and you can get all the technical info you could ever want. Even how to use the stuff for cosmetics!

David

 

[Bill Myers]

I have been useing a Boron Nitride Nickel plateing application,I bought the Kit & it really works great on Dies & Gun parts. The Boron Nitride is suppended in the Nickel solution& is coated along with the nickel to form a very low friction coating.It goes on .0002 & is very wear resistance.I coated a 40x action & bolt with it & it is very smooth.. BILL

 

[jim b.]

Boron nitride - which one to order?

Thanks for the info., everyone. So, which product should I order? Is it the "Nano", the one that costs $90 for 1 pound? It's described as "MK-hBN-N70 (Nano)". This is the smallest particle size (.070 microns).

I see that larger particle sizes are offered (.5 micron, 1.5 micron, and 5 micron), at lower costs. Of course, I'd like to use the material that does the best job. Thanks again, all.

Jim

 

[TEAMKIESS]

cleaning the barrel

What do you guys use to clean when using Boron nitride? kroil oil mixture like molly? butches?
Thanks
Mike

 

[John Kielly]

When I look up Boron Nitride on the net, I find that there are two variants, hexagonal & cubic, each with differnet physical characteristics & uses.

Am I correct in assuming that you guys are using the hexagonal variant?

 

[WrzWaldo]

should be found on this site:
http://www.lowerfriction.com/hbn.php?gclid=CImVyPObl5ICFQ0ePAodHRK7SA

We've been using it and have found it to do everything that WS2 Tungden Disulfride (Danzac) does without the black fingers. It's a s slick as WS2.

We tumble with #5 steel shot in a vibratory tumbler for about 25 minutes. It takes about a screwdriver tip of Boron to coat 60 bullets. Tumble the steel shot alone first for a while before you do you first load. Take the bullets out of the medium and roll them around on a towel to take off the excess.

Not hardly!

hBN Coefficient of Friction is 0.15 to 0.70 ---> http://www.lowerfriction.com/properties_hbn.php

WS2 Coefficient of Friction is .03 Dynamic and .07 Static! ---> http://www.lowerfriction.com/powder.php

 

[Jimm]

This is what I have been

Not hardly!

hBN Coefficient of Friction is 0.15 to 0.70 ---> http://www.lowerfriction.com/properties_hbn.php

WS2 Coefficient of Friction is .03 Dynamic and .07 Static! ---> http://www.lowerfriction.com/powder.php

saying ! I am still trying to understand why those involved withis experimentation have deserted tungsten disulfide and moved to B/N . There is a large order of difference in the coefficient of friction values between the two products , Too slippery , the WS2 ?

So far the best I can understand is that the B/N doesnt get your hands dirty . Am I missing something . ? My impression of shooters here has been that if a double dip of sheep stuff would make the agg better then " bring on the truckloads ".

Dunno , have asked the questions but am too ignorant to read between the lines I reckon

In the original Neco process with moly wasnt there a wax agent used along with the moly ? Was that over the moly or along with it ? Is anyone using a similar wax agent with the WS2 or B/N ? Seems that would solve some dirty hands problems , that and some latex surgical gloves

Really just trying to understand the reasons for what people are doing re: this . Guess I just need to get both ( I have ) and see what happens for me . Just hated to plow ground already fine enough to plant .

Jim Brown

 

[WrzWaldo]

saying ! I am still trying to understand why those involved withis experimentation have deserted tungsten disulfide and moved to B/N . There is a large order of difference in the coefficient of friction values between the two products , Too slippery , the WS2 ?

Not as far as I'm concerned.

So far the best I can understand is that the B/N doesnt get your hands dirty . Am I missing something . ? My impression of shooters here has been that if a double dip of sheep stuff would make the agg better then " bring on the truckloads ".

No comment.

Dunno , have asked the questions but am too ignorant to read between the lines I reckon

In the original Neco process with moly wasnt there a wax agent used along with the moly ? Was that over the moly or along with it ? Is anyone using a similar wax agent with the WS2 or B/N ? Seems that would solve some dirty hands problems , that and some latex surgical gloves

Waxing the WS2 is not required. Dunno about the B/N but I would guess that it is not required there as well.

Really just trying to understand the reasons for what people are doing re: this . Guess I just need to get both ( I have ) and see what happens for me . Just hated to plow ground already fine enough to plant .

Jim Brown

If I get the urge and time I may try some B/N, but I'm selling enough of the WS2 right now that it just does not make sense to mess with it. Especially given the numbers favor the WS2.