HBN bullet coating
- Thread starter lilgreg
- Start date
Clean the barrel as normal. I place bore solvent in the barrel at the range while it is still warm, brush it, and run a few patches through until it quits showing carbon. Place more in an patch out the excess. Then once home I look at copper. Naturally I don't use ammonia solvents at the range since I leave a bit in the barrel. I use Wipe Out with accelerator at home to get the copper out. To pre-treat the barrel I use a real light penetrating oil mixed with HBN. Other people use isopropyl alcohol and HBN.
Clean as you will. I use a solution of 3 grams hBN to 16 oz of 91% alcohol. Apply solution to a bore mop, 2 passes each way, let it sit a few minutes for the alcohol to evaporate. Then enjoy shooting.
Davidtubb.com sells it (David's generally credited with using it for a bullet lube first):
http://www.davidtubb.com/bn-boron-coating?search=Boron
- and there are other sources on-line too, like Canada's Lower Friction outfit:
http://www.lowerfriction.com/product-page.php?categoryID=2
As well as the various dry powder grades they also sell aerosol spray cans which may work just fine for bullet coating: just spray a batch before whatever mechanical operation you prefer to use for coating bullets rather than buying a full pound when you use maybe a grain or two to coat 100 bullets at a time. At that rate a pound of powder lasts a long time....
http://www.davidtubb.com/bn-boron-coating?search=Boron
- and there are other sources on-line too, like Canada's Lower Friction outfit:
http://www.lowerfriction.com/product-page.php?categoryID=2
As well as the various dry powder grades they also sell aerosol spray cans which may work just fine for bullet coating: just spray a batch before whatever mechanical operation you prefer to use for coating bullets rather than buying a full pound when you use maybe a grain or two to coat 100 bullets at a time. At that rate a pound of powder lasts a long time....
Don't worry about treating the barrel :
The first round through the barrel removes anything you have swabbed it with. hBN is insoluble in everything other than acids. In other words, to mix it in liquid would require some form of acid. Much of this voodoo is referred to as monkey see, monkey do. BTW: hBN adheres to the bullet/barrel one way, and one way only. Via impact plating.. Wiping, spraying, swabbing, etc, is a superficial film. Randy Robinett and I were experimenting with, and using, hBN, for at least one year prior to David Tubb advocating it's use. I had so much of it, I was selling the excess for $10.00 per full ounce.
The first round through the barrel removes anything you have swabbed it with. hBN is insoluble in everything other than acids. In other words, to mix it in liquid would require some form of acid. Much of this voodoo is referred to as monkey see, monkey do. BTW: hBN adheres to the bullet/barrel one way, and one way only. Via impact plating.. Wiping, spraying, swabbing, etc, is a superficial film. Randy Robinett and I were experimenting with, and using, hBN, for at least one year prior to David Tubb advocating it's use. I had so much of it, I was selling the excess for $10.00 per full ounce.http://bench-talk.com/163.html
Yes Jim, and when the alcohol has dried, you have nothing more than a film on the barrel. That film disappears with the first round fired. You can tumble bullets in a mixture of hBN and alcohol, and once dried, you can wipe that film off with a rag. Randy, myself, Mike, and many others, finally stopped using it, after realizing it offered nothing more than easier barrel clean-up. Our good sales people have profited from it however ;D
I believe you are probably correct. It is my assumption that preconditioning the barrel is for the benefit of the first shot. You obviously have much more knowledge than myself on the matter.JRS said:
bdale
NRA Life Member
It was never intended to do anything but give you more shots before cleaning and make cleaning easier, if your gun want shoot this is not some magic powder, it does what it is supposed to do easier cleaning more shots before cleaning, much like Moly except a lot cleaner and doesn't harm your barrel or attract moisture if left in your barrel.
rwh said:
Pretty much.
Typical day for me is 60 - 110 rounds, depending on the event. Sighters are allowed, maybe even for score (convertible is good!) so 'first shot on a cold barrel' isn't as important to me as to others.
I don't clean a barrel after every event either & when I do clean my experience has been my barrels clean up quickly with little fuss. Only one I have now is being used with hBN-coated bullets & even that one might be switched this season to plain.
As bdale said it has its purpose (depending on your needs) as does moly or DANZAC for those who like to use them, but for me it's not a do-or-die proposition.
I've been using HbN coated bullets for a few years and think the main/sole benefit is more accurate shots before cleaning is needed. To me, this is a major benefit worth the minor amount of work involved. I see many people complaining about their accuracy degrading over the course of an F-class match (real or perceived....not sure). But, this prompts them to clean every day or even more often. Personally, I think over-cleaning causes its own problems and if HbN reduces the need to clean, that is a big plus. We've shot over 400 rounds between cleanings on our 284 Shehane many times and some of the best performances have been the very last string. So, we like the results and plan to keep coating those bullets.
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