Cleaning and abrasives and Fire Lapping

Frank Green

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Oct 27, 2006
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www.bartleinbarrels.com
Not sure where to post this so I'm going to post it here in Bolt Action Rifles as well as I'm going to make a post on Accurate Shooter Forum as well.

This will probably start an argument but don't know what else to do other than to spell this out in black and white.

This has been kicked to death I don't know how many times but not just me but by everyone. I've posted pictures of what happens and the damage that can be done to barrels from using abrasives, using abrasives in conjunction with a brush and fire lapping barrels.

Everyone... when it comes to using an abrasive type cleaner you have to be very careful in how you use it. Improper use or over using an abrasive type cleaner either in a paste form or a liquid form it can and will cause problems. When and where and in what time frame we cannot put exact numbers on it. Too much is beyond our control being the barrel maker. We have ZERO control over what and how people clean barrels with.

Same goes with someone using a fire lapping kit, Tubbs Final Finish or someone doing they're own finish lapping to a barrel. Again we have no control over what is being done.
You cannot expect a barrel maker to warranty and replace a barrel at n/c when something is being done to it that is totally beyond our control.

Latest example with pictures attached. Customer has less than 400 rounds on a 6mm barrel. Caliber is 6XC. He used Iosso bore paste along with Tubbs Final Finish to fire lap the barrel. How many times etc... we don't know exactly.

The first approx. 2" of rifling in front of the chamber... the lands are completely gone. Basically polished smooth. From the breech face of the chamber until you get about 6" up from the breech do you start to see lands. At this junction point the bore is about .2385". That's a full .0015" of material that has been taken out of the bore.

Tubbs years ago asked me to endorse his Final Finish kits. I said... only if he was going to cover the warranty on the barrels. The conversation ended right then and there on the phone.

The rest of the bore when you look at the lands there is no crispness to it. The edges are smoothed/rounded over. All points to cleaning damage. Sorry for the grainy pics.

The customer wasn't happy when we said we will not warranty it. He said he's done it to four other barrels with no issues. Again guys... we have no control over how much is done and how often and how aggressive. Cleaning is simply beyond our control in what a person does to the barrel. Maybe the company who makes the cleaner product should cover the warranty to the barrel/customers rifle. I'd like to see that happen?

I tried to come to a happy medium with customer and said that we would help with something but not eating the whole thing. it was a no go.

It's on our website under cleaning etc.... as well.

No fire lapping kits should be used in our barrels. This can damage the barrel and we will not warranty a barrel in any way.
Your barrel should never be lapped by anyone else other than us. Any individual or gunsmith lapping our barrels also voids the warranty.

If you want to play with or use a Fire Lapping kit.... I only say in a factory type barrel with a really rough bore and if your going to use it in ours... use it towards the end of the life of the barrel.
Then I feel you most likely have nothing to lose but there is no reason to use it on our barrel when it's new etc... if you think you have a problem with our barrel.... I'd prefer you call us and ask us for help before something gets done to it that cannot be undone.

First picture is at the case mouth.
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Next pic is 6" from the breech face. So approx. 2" to 3" from the case mouth and you can start to see the land.

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Approx. 8" from the breech end

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Here is several inches in from the muzzle. Looks nice but again the crispness to the lands isn't there.

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After trying like 10 different non abrasive cleaners, I saw with my borescope that Flitz Bore Cleaner stood head and shoulders above the rest. It says non abrasive on the bottle but I’m concerned that’s too good to be true. Anybody know if it’s safe to use as Hoppe’s or where it lands on a safety continuum?
 
Did you get any internal measurements to see how much they increased the size of the bore?

Time and money is better spent developing a good load for any barrel versus dabbling in snake oil.
 
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Did you get any internal measurements to see how much they increased the size of the bore?

Time and money is better spent developing a good load for any barrel versus dabbling in snake oil.
Again first two inches of rifling in front of the case mouth are gone. Where the lands do start the bore is .2385". Basically at that point a full .0015" was taking out of the bore there.
 
Again first two inches of rifling in front of the case mouth are gone. Where the lands do start the bore is .2385". Basically at that point a full .0015" was taking out of the bore there.
Ok, I should have read more carefully. Well, that's definitely enough for way too much gas to overcome the bullet; if it's sealing at all any point in the barrel. Damn.
 
Liquid or paste guys.... it can and will cause problems. You have to be careful!

Witch's brew is in a liquid form but has an abrasive in it. One guy wrecked 3 barrels in the span of 6 months. His last barrel was a 6.5mm and with only 110 rounds fired thru it... he took a full .001" out of the bore.

Another concern of mind when someone uses an abrasive type cleaner is.... did you get it all out completely. If you do a half ass job of getting it out.... you might as well have gravel in the bore when you fire the first round thru it.
 
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So confusing. They basically said it’s not possible to hurt the barrel with it.

They’re probably getting away with saying that by using some obscure definition or parameter for “abrasives” used in commercial circles [speculation].

Apples to oranges, I know - but…

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…look! I successfully sharpened my kitchen knife…

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…without resorting to the use of an abrasive!

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EDIT: Found the above post elsewhere.
 
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Not wanting to derail the thread, but thought I’d throw this in here too…

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Remember the adverts for all these “Ammonia - Free” bore cleaners flaunted by our fellow red - blooded, freedom - loving, patriotic, God - fearing 2nd Amendment - supporting companies?

Well, guess how this active group behaves in aqueous solution.

Marketing!
 
@Frank Green - yeah...the perennial argument....how to clean a rifle barrel bore. Right up there with "7 1/2 or 8's" in Trap shooting! lol

I use your cleaning method with abrasives:

1. I use it pretty infrequently and more toward the end of life of the barrel. e.g. - I have one 6.5 CM barrel currently with 3,200 rounds on it (still shooting but I don't compete so no long strings of fire...that helps). I used JB (blue label) at about 2,300 rounds and then again recently at 3,000. Another barrel (yours in 400MODBB) in 6.5 CM I used the paste at 800 rounds and haven't since. I'm at 1,800 rounds and may consider an abrasive cleaning but tbh its shooting fine and looks ok from visual exam. I now clean pretty much after ever range trip.....which seems to have kept the carbon build up under control hence not a lot of need to abrasives.

2. I have adopted your method of using a Parker-Hale style jab with paste embedded in a wrapped patch. Not at all aggressive per my observation of resistance in the bore and bore scope examination.

3. Yeah, its a PIA to get it all out. LOTS of patches followed by some solvent (I use BT Eliminator). Then LOTS of patches followed by Gun Scrubber or ISO patch, and keep dry patching until I get no more grey (that's the JB) or black carbon. I've never understood the "I push 3 dry patches thru the bore and I'm done". To me, it ain't out until its totally out as indicated on the white patch.

Seems to have worked so far.

Thanks as always for your input.
 
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View attachment 8787684

Not wanting to derail the thread, but thought I’d throw this in here too…

View attachment 8787696

Remember the adverts for all these “Ammonia - Free” bore cleaners flaunted by our fellow red - blooded, freedom - loving, patriotic, God - fearing 2nd Amendment - supporting companies?

Well, guess how this active group behaves in aqueous solution.

Marketing!
Do you have anything other than a screenshot to back up your claim?

Ethanolamine aka monoethanolamine or 2-aminoethanol (that's in Bore Tech Eliminator, etc.) in an aqueous solution, does not directly convert to ammonia through a simple chemical reaction, but ammonia can be formed as a byproduct during MEA's degradation. The degradation process is primarily driven by factors like high temperatures and the presence of oxygen or other chemicals.

Monoethanolamine (HO-CH2-CH2-NH2) is a stable organic compound in water under normal conditions (solvents like bore tech eliminator are mainly water with some monoethanolamine and proplyene glycol).

I would much rather use monoethanolamine to chelate/remove copper than ammonia b/c it's less toxic and less corrosive

1760548689422.png
 
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Do you have anything other than a screenshot to back up your claim?

Ethanolamine aka monoethanolamine or 2-aminoethanol (that's in Bore Tech Eliminator, etc.) in an aqueous solution, does not directly convert to ammonia through a simple chemical reaction, but ammonia can be formed as a byproduct during MEA's degradation. The degradation process is primarily driven by factors like high temperatures and the presence of oxygen or other chemicals.

Monoethanolamine (HO-CH2-CH2-NH2) is a stable organic compound in water under normal conditions (solvents like bore tech eliminator are mainly water with some monoethanolamine and proplyene glycol).

View attachment 8787708

Beyond a screenshot? Sorry, no. Just what I remember from High School Chemistry. I don’t even have a single one of my own, or even my kids’ textbooks to reference - but that would be kind of like asking for documentation behind πr^2.

Not saying it forms Ammonia, but functionally - it still is.

The easiest and cheapest way of liberating Copper with a liquid cleaner is through the use of an Amine group, in one form or another.

Basically, “weaker” Ammonia.

That’s why our “Ammonia - Free” cleaners still have this Ammonia smell.

So while “Ammonia - Free” may be technically correct, it is still to a large degree disingenuous - it's really still Ammonia - and almost reeks of lawyerese.
 
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"The first approx. 2" of rifling in front of the chamber... the lands are completely gone"

Nooooooo... that's free bore. It keeps the pressures down and keeps the Sniper's Hide approved baby proof loads safe. 🧑‍🔬
Your killing me! I could beat you with a stick right now! :LOL:

The scary part is... someone somewhere will look at it that way.
 
In my years of shooting I have never found the need to use anything except Hoppes 9 and gun oil on high quality barrels. I shudder at thought of putting abrasive cleaner in my Bartlein barrels

Now with factory moon crater barrels I have used. JB bore compound in first couple of cleanings to try and smooth out a bit of the Maching marks