Carbon ring front of chamber may be hiding?

[LIUNA]

I noticed my 6BRX wasn't shooting normal, and noticed unusual primer problems. I cleaned my barrel until patch was clean, then something told me to run a larger bore brush into chamber to make sure there was no carbon ring, but to my surprise I ran a wet patch in the chamber, and oh what a surprise, and after several hours of brushing and wet patching the carbon continues to come out. I have used various carbon cleaners but very slow, I noticed Sinclair sells a chamber plug, so I am going to get one and soak the carbon completely to remove, I guess the old saying... Don't take anything for granted, is true. I hope this insight helps someone else.
Bob

 

[BoydAllen]

Every time I clean I do something a little different to clean and dry the chamber. I have examined the results with a bore scope and it seems to keep me ahead of the problem. I use my chamber rod (Sinclair) with an old bronze bore brush attached, and tear a strip off of the entire side of a standard kitchen paper towel that is perhaps 2" wide at the top, and a little wider at the other end. I wrap this loosely around the brush, so that it extends beyond its end about a half inch. so that it is larger than the bore at the front, and gets bigger toward the back, so that when I shove it strongly into the chamber (after first making sure that it started straight) that it is compressed along its entire length pretty heavily and looks like the chamber when I pull it out. While pressing it as far forward as it will go, I give it several twists, then remove it, reverse the paper and do it again. I do this every time that I clean the barrel, and throw the paper away when finished, if the paper still looks dirty after I have turned it over and wiped the chamber a second time, I may tear a second piece and use it to make sure that I have every thing out. Powder fouling sets up over time, so it is important to clean as soon after shooting as possible. To speed up your chamber neck cleaning, use a stiff nylon brush that is one size larger than your bore. load the bristles of its front half full of IOSSO insert it into the chamber until you meet the resistance that will tell you that you are at the end of the chamber neck, and twist the rod a number of times, and then thoroughly clean all of the abrasive out of the chamber and barrel. This should solve your problem rather quickly, and not hurt a thing.

 

[LIUNA]

Thanks Boyd, as always you have good advice, I appreciate your response.
Bob

 

[johara1]

Instead of messing around, turn an X7 or a XX75 arrow down to .002 under your neck size and press it in and out a few times and wipe it out. I also us a long case and sharpen it and push it in with the bolt works the same but use the arrow at the match cause you can't have the bolt in. Bore scope and it's clean in a few min.. ....jim

 

[amlevin]

Every time I clean I do something a little different to clean and dry the chamber. I have examined the results with a bore scope and it seems to keep me ahead of the problem. I use my chamber rod (Sinclair) with an old bronze bore brush attached, and tear a strip off of the entire side of a standard kitchen paper towel that is perhaps 2" wide at the top, and a little wider at the other end. I wrap this loosely around the brush, so that it extends beyond its end about a half inch. so that it is larger than the bore at the front, and gets bigger toward the back, so that when I shove it strongly into the chamber (after first making sure that it started straight) that it is compressed along its entire length pretty heavily and looks like the chamber when I pull it out. While pressing it as far forward as it will go, I give it several twists, then remove it, reverse the paper and do it again. I do this every time that I clean the barrel, and throw the paper away when finished, if the paper still looks dirty after I have turned it over and wiped the chamber a second time, I may tear a second piece and use it to make sure that I have every thing out. Powder fouling sets up over time, so it is important to clean as soon after shooting as possible. To speed up your chamber neck cleaning, use a stiff nylon brush that is one size larger than your bore. load the bristles of its front half full of IOSSO insert it into the chamber until you meet the resistance that will tell you that you are at the end of the chamber neck, and twist the rod a number of times, and then thoroughly clean all of the abrasive out of the chamber and barrel. This should solve your problem rather quickly, and not hurt a thing.

I do something similar although instead of paper towel I use pieces of old T-shirts cut up as needed. I'll soak the chamber in SLIP 2000 Carbon Killer I keep handy for cleaning my AR-15 BCG's.

Sometimes I'll wet a piece of T-shirt and kind of "pack the chamber area" and let it soak a while. After a while I then pull it out, give a couple of scrubs with a Sinclair Chamber Brush then wipe it all out. The Slip 2K sure softens up the carbon as I'm sure other products do. This stuff kind of smells nice too.

 

[DennisH]

I noticed Sinclair sells a chamber plug, so I am going to get one and soak the carbon completely to remove, I guess the old saying

Soaking with Wipeout does the trick for me!

 

[LIUNA]

Thanks to everyone for your help and advice
Bob

 

[lpreddick]

hoppe's makes a brush they label "tenex". it is a very stiff plastic although it looks like bronze. i use one next size up form the caliber being cleaned ( a 6mm for a 22 cal). i mix the moly cleaning compound...kroil and j-b and dab a bit on the end of the brush and insert into neck portion of chamber and you can feel as it reaches the end. it took the rod in a variable speed drill to get the VERY established ring out (confirmed by borescope). i do this now after each firing session and can get it clean by hand twisting the rod. an established carbon ring and an untrimmed case jammed into it by a few thou will increase pressure and the bullet will go elsewhere.