Those using HBN

[bdale]

I couldn't find much about the cleaning process most shooters use after using HBN slurry in their barrels and HBN coated bullets. I have some coated bullets and will be doing the slurry method of mixing HBN with 90% alcohol and moping it in the barrel to coat the inside of the barrel, but wanted to know the best method of cleaning the barrel without undoing my coating process or does this need to be done every time after a normal cleaning. Thanks :-\

 

[jfseaman]

Has to be redone after a clean to the pores.

I bore snake after sessions and clean at about 80 rounds or if I've been shooting fast/hot.

 

[spclark]

I don't bother "mopping" after cleaning but then I don't find a need to clean with abrasives either.

Patches with Hoppe's first then dry, then maybe Shooter's Choice then dry again is enough. First shot fouls the bore sufficiently for the next rounds to be "on call" for the day, sometimes more.

Keep in mind I shoot long range (mostly) with a sling & iron sights. If you're shooting BR with optics or F-Class your needs may differ.

 

[Nomad47]

I have three barrels that have had the slurry treatment. I would like to use the barrel with the most rounds fired as an example.
The 28" 8 twist 6XC Criterion barrel mounted on a Savage model 12 got a good cleaning at the 39 round point. The hBN slurry was put in the barrel at that time with the obligatory bullet shot within a few minutes. I have been dry patching every 20 to 40 rounds since that time. NO chemicals or brushes have gone down the bore since.
The last dry patch was on 7/27 at a round count of 925. Yesterday, 7/30, a groundhog was killed with one shot at 583 yards (round # 928).
Needless to say, I am sold on the hBN process.

 

[bdale]

All I can say is wow! That's what I wanted to find out and your experience with it and that many rounds fired is a good testament as to how well this stuff works glad I bought a pound of it but probably will never use all of it, Thanks for sharing your results. Thanks again Bill and happy motoring

 

[Jay Christopherson]

What's the "slurry" method? Do I just keep mixing a little bit of Isopropyl Alcohol with HBN until I get a consistency I like or is there a more scientific method? And once done, you just coat a bore mop and run it a few times through a clean barrel?

I'm assuming this is a "when the barrel is new" deal?

 

[bdale]

Jay I'm no authority on this but what I have prepared for my slurry was to get a small container say 4 or 5 ounces and I put the equivalent of a heaping teaspoon in that and shake it up looks like milk this is what I intend to use, also my barrel has been shot but I have cleaned it thoroughly will use a mop soaked with the mixture to run through the barrel to get it completely coated then fire a few shots over that and dry patch afterwards. Also I used 90% alcohol it doesn't have much water and evaporates quickly leaving HBN.

 

[Nomad47]

There was an article describing the procedure. It said to use the highest percentage of alcohol available. I believe I used 90%. I use a prescription bottle that is just tall enough to keep the mop in. My mop remains in the bottle and the hBN will settle requiring the bottle to be shaken before use.
The barrel I mentioned had 39 rounds down it before I did the process. The other two barrels were brand new when I did the process. They now have 665 and 442 rounds down them. And I am very happy with them as well.

 

[Nik]

Where can I get some HBN? Thanks.

 

[Nomad47]

Where can I get some HBN? Thanks.

http://sandblastingabrasives.com/Bullet-Lube-Gun-Barrel-Bore-and-Bullet-Lube-Order-Page.html

 

[Jay Christopherson]

There was an article describing the procedure. It said to use the highest percentage of alcohol available. I believe I used 90%. I use a prescription bottle that is just tall enough to keep the mop in. My mop remains in the bottle and the hBN will settle requiring the bottle to be shaken before use.
The barrel I mentioned had 39 rounds down it before I did the process. The other two barrels were brand new when I did the process. They now have 665 and 442 rounds down them. And I am very happy with them as well.

Do you guys shoot naked bullets or do you HBN your bullets when you do this?

 

[Raythemanroe]

+1 ?

 

[sbrabec]

Here is a link to some very great info thanks to zfk55. This discribes the entire process. http://theswissriflesdotcommessageboard.yuku.com/topic/9031/hBN-again-and-this-time-I-ll-leave-it
Good luck
Scott

 

[Nomad47]

Here is a link to some very great info thanks to zfk55. This discribes the entire process. http://theswissriflesdotcommessageboard.yuku.com/topic/9031/hBN-again-and-this-time-I-ll-leave-it
Good luck
Scott

Thanks, Scott. I was getting ready to post the same link.

Yes, you definitely must shoot hBN coated bullets after ceramic coating the bore if you want to do the dry patch cleaning regimen.

My new 6SLR which currently has 430 rounds down the barrel got the ceramic coating before the first round went down the tube back in May. The other day, I shot 6 shots at paper at 100 yards - two each 44.9 gr 7828 105amax, 45.1 gr 7828 105 Hybrid, and 44.5 gr 7828 105 Hybrid. All bullets were hBN coated, of course. But the interesting thing to me was all 6 went into one ragged hole. I was checking POI difference between the three loads so I was quite pleased with the results.
Not too shabby for a barrel that has yet to see any chemicals or brushes.

 

[Jay Christopherson]

So, this is the part I'm having trouble with - you guys are saying that after shooting multiple rounds (say, a typical 60 or 80 round match), that you literally shove a few *dry* patches down the bore and that's all it takes to completely clean the bore? That there is no carbon, powder residue, etc... left in the bore? No carbon ring?

I'm trying to image the heat and pressures involved in firing a round and then trying to imagine the residue simply sliding out of the bore with couple of dry patches.

 

[jonbearman]

This is getting interesting,finally someone asked how to do it.Is there a way to coat without a heat lamp? I have pill jars but I dont want to hack up my dillon tumbler like the swiss article showed.I was told washed bb's for the media with washed bullets in each jar with about the end of a screwdriver tip full of hbn and put the jars in my normal media and tumble for 2 to 3 hours roll on a towel to remove excess and if they look frosty then your done.How far off am I from doing it right???

 

[DennisH]

Very interesting, this is the first I have heard of this process.

I will check out the links already mentioned, but please list all sources on this subject, Start to Finish.

Dennis

So, this is the part I'm having trouble with - you guys are saying that after shooting multiple rounds (say, a typical 60 or 80 round match), that you literally shove a few *dry* patches down the bore and that's all it takes to completely clean the bore? That there is no carbon, powder residue, etc... left in the bore? No carbon ring?

+1, dry patch cleaning only. You never use chemicals again?

 

[Duster_360]

Been reading this as well and find it very interesting. Any other sources that sell smaller amounts - less than a pound?


Is Tubb's TBN Coating Bullet kit the same thing as HBN, or is it different?

 

[Jay Christopherson]

Been reading this as well and find it very interesting. Any other sources that sell smaller amounts - less than a pound?


Is Tubb's TBN Coating Bullet kit the same thing as HBN, or is it different?

The link that Nomad47 provided on page 1 sells in .25 or .5 lb lots. The link that sbrabec provided seems to pretty much spell out the process. I've found that same post on different forums so it seems like that's the way to go.

 

[Nik]

Which grade if any should I get for coating the bore?