Carbon Ring

[dutch14]

It's easy to cut an off-center chamber is a lathe. Just feed it faster than the tool will handle. Now an off-center chamber that is off by a specific amount requires a 4 jaw chuck and a lot of time. I doubt that any receiver manufactures require and off-center chamber in the barrel.

 

[TRSR8]

It's easy to cut an off-center chamber is a lathe. Just feed it faster than the tool will handle. Now an off-center chamber that is off by a specific amount requires a 4 jaw chuck and a lot of time. I doubt that any receiver manufactures require and off-center chamber in the barrel.

FWIW, not that it’s important, but been told that results in an oblong chamber.
Academic sinse I was told BC didn’t do it……was screwing with people, just as he was when he was pushing the “ managing the perfect carbon ring “ theory before the RF comp world figured out, simply remove it.

 

[Thylacine]

G'day blokes. I was chatting to a mate who shoots an Anschutz in our benchrest competition (I use a CZ), he said that Anschutz suggests that (I've used the AI answer) "Anschutz .22 LR rifle should generally have its action and chamber cleaned every 200–500 rounds to prevent functioning issues, while the bore should be deep-cleaned, using a proper cleaning rod and bore guide, every 500–1,000 rounds or when accuracy degrades." he tends to leave the cleaning to 1000 rounds the dreaded 'carbon ring' builds up in some chambers faster than others. My S&W 17 will show a buildup of carbon(?) after a few matches, however, not all of the chambers in the cylinder show the same degree of fouling build-up. Could some chambers be a bit tighter than others?

If you see the buildup at the bottom of the chamber first, thats most probably gravity or some gas + unburnt powder and carbon is leaking back under the case. Did the pressure of firing (23-25 thousand PSI) expand the case to seal the chamber and stop gas leaking back and starting a carbon build up? I really don't see this as a problem if you clean the gun after a session/match at the range with a pull through or bore snake (it's an army thing), I run a dry brush through the barrel and dry patch at home. Shock-horror, sometimes I leave this to the next day... My favorite gun cleaning products are Hoppe's #9 and Mill spec Break Free CLP and good clean brushes. Frequent cleaning won't wear your gun out but it will prevent carbon buildup.

 

[Tim Slater]

G'day blokes. I was chatting to a mate who shoots an Anschutz in our benchrest competition (I use a CZ), he said that Anschutz suggests that (I've used the AI answer) "Anschutz .22 LR rifle should generally have its action and chamber cleaned every 200–500 rounds to prevent functioning issues, while the bore should be deep-cleaned, using a proper cleaning rod and bore guide, every 500–1,000 rounds or when accuracy degrades." he tends to leave the cleaning to 1000 rounds the dreaded 'carbon ring' builds up in some chambers faster than others.

And that's why you shouldn't entirely trust AI.
Since the 1960s at least Anschutz have consistently recommended cleaning their match rifles after shooting.

 

[Steel Mover]

I keep a 22 LR Match reamer and a standard chamber reamer both, in my drawer. At times I need to clean up 22 LR chambers. 99% of the time they clean up well by hand when a carbon ring is involved.

 

[TRSR8]

G'day blokes. I was chatting to a mate who shoots an Anschutz in our benchrest competition (I use a CZ), he said that Anschutz suggests that (I've used the AI answer) "Anschutz .22 LR rifle should generally have its action and chamber cleaned every 200–500 rounds to prevent functioning issues, while the bore should be deep-cleaned, using a proper cleaning rod and bore guide, every 500–1,000 rounds or when accuracy degrades." he tends to leave the cleaning to 1000 rounds the dreaded 'carbon ring' builds up in some chambers faster than others. My S&W 17 will show a buildup of carbon(?) after a few matches, however, not all of the chambers in the cylinder show the same degree of fouling build-up. Could some chambers be a bit tighter than others?

If you see the buildup at the bottom of the chamber first, thats most probably gravity or some gas + unburnt powder and carbon is leaking back under the case. Did the pressure of firing (23-25 thousand PSI) expand the case to seal the chamber and stop gas leaking back and starting a carbon build up? I really don't see this as a problem if you clean the gun after a session/match at the range with a pull through or bore snake (it's an army thing), I run a dry brush through the barrel and dry patch at home. Shock-horror, sometimes I leave this to the next day... My favorite gun cleaning products are Hoppe's #9 and Mill spec Break Free CLP and good clean brushes. Frequent cleaning won't wear your gun out but it will prevent carbon buildup.

Well, FWIW, Anschutz has been generally wrong in that regard for some time.
Bleiker, for instance, other than pretty much eclipsing Ans. goes with frequent cleaning with guide, brush, proper solvent......pretty much same as many, many top RFBR shooters do, as well as particular attention.

 

[Rampsey]

Well.
The dead horse got revived again.
Before the consumer economical availability of "barrel sellers" (I mean bore scopes)
Carbon ring what?.
What are you talking about, never heard of that?

Nobody had, a carbon dissolving solvent in thier cleaning kit.
Because nobody was trying to remove a thing they could not see,

1 step further.
Ask Eley, Lapua.
What were thier tightest ammo test results back in 1980s?
1990s?
And you'll soon find that in the last 10 years of bore scopes, solvents. Special soaking cleaning carbon removing rituals.

The factory testing shows no better accuracy now than back then 4 decades prior to carbon rings and bore scopes.

Just food for thought

 

[Hi-NV Shooter]

Well.
The dead horse got revived again.
Before the consumer economical availability of "barrel sellers" (I mean bore scopes)
Carbon ring what?.
What are you talking about, never heard of that?

Nobody had, a carbon dissolving solvent in thier cleaning kit.
Because nobody was trying to remove a thing they could not see,

1 step further.
Ask Eley, Lapua.
What were thier tightest ammo test results back in 1980s?
1990s?
And you'll soon find that in the last 10 years of bore scopes, solvents. Special soaking cleaning carbon removing rituals.

The factory testing shows no better accuracy now than back then 4 decades prior to carbon rings and bore scopes.

Just food for thought

Way back when, they also said a .22 rimfire never needs cleaning!

any competitive shooter now cleans regularly some even with a bronze brush no less.

Lee

 

[Rampsey]

Way back when, they also said a .22 rimfire never needs cleaning!

any competitive shooter now cleans regularly some even with a bronze brush no less.

Lee

Precisely.
And as I mentioned.
Accuracy and scores were eqaul to today's is my point.

 

[Hi-NV Shooter]

Precisely.
And as I mentioned.
Accuracy and scores were eqaul to today's is my point.

I don't agree on scores at least in RFBR. scores have been the highest they have ever been. most of that is on the ammo, but again almost everyone shooting sanctioned RFBR will clean in some way between targets.

Lee

 

[Rampsey]

I don't agree on scores at least in RFBR. scores have been the highest they have ever been. most of that is on the ammo, but again almost everyone shooting sanctioned RFBR will clean in some way between targets.

Lee

Ever sent a rifle to one of the test centers?

 

[Hi-NV Shooter]

Ever sent a rifle to one of the test centers?

I have been to the Lapua Mesa center 3 times last was this past August, I am waiting to go again hopefully in April-May the Midas+ plus I got in August gave me my best scores this ARA past season.

my cleaning regime is 1-wet VFG pellet then 3 dry pellets during a match between targets at home deep clean with a bronze brush.

Lee

 

[Rampsey]

I have been to the Lapua Mesa center 3 times last was this past August, I am waiting to go again hopefully in April-May the Midas+ plus I got in August gave me my best scores this ARA past season.

my cleaning regime is 1-wet VFG pellet then 3 dry pellets during a match between targets at home deep clean with a bronze brush.

Lee

Great day great score!!

How m?any times at test center between the 500 or so rounds fired testing your rifles did they clean it

 

[Hi-NV Shooter]

Great day great score!!

How m?any times at test center between the 500 or so rounds fired testing your rifles did they clean it

I had more than a great day this past season, I had several enough to win 3 State tournaments and 2 State overall UL in points. I won 7 out 9 tournaments I shot in.

This last visit I found the lot of Midas+ after 40 rounds fired. they do an initial 10 shot then follow up with another 10 if it shows promise. they only shoot enough to find the lot that will be the best. I never had to shoot 500 rds. during these times they wouldn't have 50 lots to test anyway. the 2nd time (2019) I went I cleaned the rifles after every 30-40 shots I left with 5 cases of ammo the good old days of plentiful ammo!

Lee

 

[John1945]

I had more than a great day this past season, I had several enough to win 3 State tournaments and 2 State overall UL in points. I won 7 out 9 tournaments I shot in.

This last visit I found the lot of Midas+ after 40 rounds fired. they do an initial 10 shot then follow up with another 10 if it shows promise. they only shoot enough to find the lot that will be the best. I never had to shoot 500 rds. during these times they wouldn't have 50 lots to test anyway. the 2nd time (2019) I went I cleaned the rifles after every 30-40 shots I left with 5 cases of ammo the good old days of plentiful ammo!

Lee

I hate when that happened. Good old days, no limits.

 

[Hi-NV Shooter]

I hate when that happened. Good old days, no limits.

probable should have known something was up when they no longer kept the ammo you tested there.

Lee

 

[ArtinNC]

After 27 comments you have to say this ""The dead horse got revived again."" Carbon ring what?. " WOW:

 

[TRSR8]

I have been to the Lapua Mesa center 3 times last was this past August, I am waiting to go again hopefully in April-May the Midas+ plus I got in August gave me my best scores this ARA past season.

my cleaning regime is 1-wet VFG pellet then 3 dry pellets during a match between targets at home deep clean with a bronze brush.

Lee

Lee,you’re arguing with an RFC luminary without a clue, might as well be talking to a block of wood.
This is the guy says ARA score no better over 25 years.
You can’t fix stupid.

 

[Rampsey]

Lee,you’re arguing with an RFC luminary without a clue, might as well be talking to a block of wood.
This is the guy says ARA score no better over 25 years.
You can’t fix stupid.

Prove me wrong----
We'll wait brite eyes

 

[1911nut]

Well.
The dead horse got revived again.
Before the consumer economical availability of "barrel sellers" (I mean bore scopes)
Carbon ring what?.
What are you talking about, never heard of that?

Nobody had, a carbon dissolving solvent in thier cleaning kit.
Because nobody was trying to remove a thing they could not see,

1 step further.
Ask Eley, Lapua.
What were thier tightest ammo test results back in 1980s?
1990s?
And you'll soon find that in the last 10 years of bore scopes, solvents. Special soaking cleaning carbon removing rituals.

The factory testing shows no better accuracy now than back then 4 decades prior to carbon rings and bore scopes.

Just food for thought

I’d like to see those factory tests. Where are they? And 40 years ago. Maybe Olympic, International guys have that data?