How many rounds does it take?

[Texas Solo]

Awhile ba k I posted a ? about a carbon ring starting to form in my 6 Dasher. This is by far the most accurate rifle I've ever owned.

After reading all the replies, I got after it. I soaked a mop in Kroil and let it sit overnight. Next I short stroked the first 8" with JB on a tight patch. I did 30 strokes, re armed and did 30 more. Bore scope scope showed a huge difference. So I was happy with my effort.

Went to range with dismal results.

It took 30+ rounds for it to get back where it was. Honestly, it scared the crap out of me. Makes me hesitant to ever do it again.

How many rounds should it take to get back to the .1 or .2 groups I was shooting?

FWIW, Berger 105H and 31.3 Varget, Alpha brass.

 

[Big Mc]

Awhile ba k I posted a ? about a carbon ring starting to form in my 6 Dasher. This is by far the most accurate rifle I've ever owned.

After reading all the replies, I got after it. I soaked a mop in Kroil and let it sit overnight. Next I short stroked the first 8" with JB on a tight patch. I did 30 strokes, re armed and did 30 more. Bore scope scope showed a huge difference. So I was happy with my effort.

Went to range with dismal results.

It took 30+ rounds for it to get back where it was. Honestly, it scared the crap out of me. Makes me hesitant to ever do it again.

How many rounds should it take to get back to the .1 or .2 groups I was shooting?

FWIW, Berger 105H and 31.3 Varget, Alpha brass.

No one can answer that one. Every gun is different. Tommy Mc

 

[Bill Norris]

No one can answer that one. Every gun is different. Tommy Mc

I believe Tommy is correct here. Some barrels will get with it in short order and some it will take a few rounds and then there are others that as you said above will take even more.

 

[Coyotefurharvester]

Several have suggested Lock ease as a final step in a cleaning process, to reduce poi shift/fouling rounds.

 

[NC/Br Shooter]

I've been trying to figure this ever since I started coming here. I just don't know. I do think the more rounds on a barrel the more rounds it takes to get back to the standard tune after a deep clean.

 

[Evlshnngns]

How many rounds before this last cleaning?

 

[Texas Solo]

How many rounds before this last cleaning?

It's cleaned after each match.
Had about 400 on it at time of deep cleaning.

 

[jackieschmidt]

Awhile ba k I posted a ? about a carbon ring starting to form in my 6 Dasher. This is by far the most accurate rifle I've ever owned.



How many rounds should it take to get back to the .1 or .2 groups I was shooting?

FWIW, Berger 105H and 31.3 Varget, Alpha brass.

any rifle I had capable of shooting .1 or .2 groups would be treated just like a Short Range Benchrest Rifle.
Clean it after every 15 rounds.

You obviously had a tune with a severely fouled barrel. Work up a load with a tune with 2 clearing rounds, then your group.

 

[Larry Koch]

Texas Solo, what type of barrel is it, Stainless steel? Carbon? and what make? That could help get you a better answer...

 

[JFrank]

Awhile ba k I posted a ? about a carbon ring starting to form in my 6 Dasher. This is by far the most accurate rifle I've ever owned.

After reading all the replies, I got after it. I soaked a mop in Kroil and let it sit overnight. Next I short stroked the first 8" with JB on a tight patch. I did 30 strokes, re armed and did 30 more. Bore scope scope showed a huge difference. So I was happy with my effort.

Went to range with dismal results.

It took 30+ rounds for it to get back where it was. Honestly, it scared the crap out of me. Makes me hesitant to ever do it again.

How many rounds should it take to get back to the .1 or .2 groups I was shooting?

FWIW, Berger 105H and 31.3 Varget, Alpha brass.

How many rounds were on the barrel prior to removing the carbon ring?

 

[Texas Solo]

Texas Solo, what type of barrel is it, Stainless steel? Carbon? and what make? That could help get you a better answer...

Schilen select match. 28" stainless 1"
bull

 

[Texas Solo]

How many rounds were on the barrel prior to removing the carbon ring?

325

 

[JFrank]

325

You shouldn’t have a huge carbon ring problem at this point although I would expect the throat to have advanced a small amount . I would re visit the seating depth along with double checking my powder window.

 

[pilediver]

It took 30+ rounds for it to get back where it was. Honestly, it scared the crap out of me. Makes me hesitant to ever do it again.

I have had the same experience after cleaning a stubborn carbon ring from a 6.5 Creedmoor Tikka CTR.
I got it clean with JB and it took about 30 rounds to get back to firing like before, which was very accurate.
Since then I keep after the carbon much better and it's still shooting great.
I have switched to Iosso on a nylon brush which seems easier and I use a bronze brush and Free All as my final step.
I never need more than 2 shots for my accuracy and velocity to return now.

 

[JMayo]

Carbon ring can just be a stain. The idea is for it not to become a bulging ring.
It's not 8" in. Prolly moved the seating depth.

 

[CharlieNC]

After every shooting trip, try soaking the throat using a patch soaked in C4. If may mitigate the buildup of a ring and reduce the need to use an abrasive in the bore.

 

[Forum Boss]

Many successful short-range benchrest shooters clean their barrels very often. I cannot argue with successful match results. However I have confirmed with borescope and other testing that aggressive frequent brushing can reduce optimal barrel life. Consider that some 6 PPC shooters are replacing their barrels every 500-700 rounds.

I have 6BR and 6BRDX barrels that require very, very limited brushing and have shown superb accuracy past 1400 rounds.

I advocate that you start conservatively (clean less aggressively) and find a system that works well for your cartridge and discipline.

If for example, you are just shooting one local match a month, you can probably be a winner cleaning at the end of the match, not every 15 rounds. I tied a 600-yd range record at my home range with a barrel that had 70 rounds since the last cleaning.

I have reduced the amount of brushing dramatically by using wipe out foam at the end of a match while the barrel is still warm.

Variables include rate of fire, powder type, barrel internal finish from the maker. But to cite one example we had one member who doubled the useful life of his barrels by soaking more and brushing much less aggressively. Remember, even with solvents, brushing involves molecular friction.

That soaking process also dramatically reduces hard carbon build up.