Dasher Test

[dave7mm]

Tubb says cleaning it out defeats the purpose. He told me to leave it and let it coat the bore.

People who want to get their barrels back to squeaky clean every time they shoot should avoid all decoppering agents and just clean the copper. Same thing seemed to be true with moly. The second the bore was nicely coated they wanted to clean it out because it looks black.

Decoppering agents are supposed to coat the bore, especially at the edges of the lands. That's kind of the point.

So do you run Tubbs fire lap bullets every 250 rounds like he recommends?

 

[johara1]

R15 has decoppering agent in it.

10 years ago? I never saw it advertised till the extreme powders came out. I still never saw anything about RL-15 having anything ..... jim

 

[Capt. Oblivious]

I think a lot of people want to take away from his legacy of innovation and that is to their own Peril as far as I'm concerned.

Luckily with you here we will never forget his name

 

[ridgeway]

Alot of guys on here are precision target shooters, long and shortrange that use high quality bullets and know better than to fire abrasive bullets down their barrels. I don't care if David Tubb say they are good...they ain't going down my tubes!!

 

[Stan Taylor]

Alot of guys on here are precision target shooters, long and shortrange that use high quality bullets and know better than to fire abrasive bullets down their barrels. I don't care if David Tubb say they are good...they ain't going down my tubes!!

I have customers ask all the time about using the Dave tubb abrasive bullets to smooth the barrel I usually laugh an say if you do an it has problems your on your own.

 

[johara1]

Actually that is not the main purpose of those bullets. As a secondary effect, it can smooth a rough barrel, but that is not what they were actually designed for... They were designed to smooth the hump that appears in front of the chamber and grows over time from the flame of the cartridge creating a raised area like you might see on a torch cut.

the tight area in front of the chamber, especially with hot cartridges degrades accuracy. The purpose of the abrasive bullets have always been to smooth the throat and chamber area.... not to smooth rough barrels. Even though it can do that.

Usually the "hump" you call it is a carbon build up that has the appearance of the alligator look.... not the metal. ... jim

 

[BartsBullets]

It’s Going To Be A Long Winter Fellas!

Bart

 

[FrankG]

I have customers ask all the time about using the Dave tubb abrasive bullets to smooth the barrel I usually laugh an say if you do an it has problems your on your own.

Bingo! Also Stan and I have no control over how many times a shooter does it, how hot the loads are etc....I had one customer that fired 6 rounds and prematurely wore the throat .030"!

David once asked me to endorse the fire lapping kits. I said no. Only way I would do it is if he would cover the warranty on the barrels when a customer complained/had a problem. Guess what.....

 

[Stan Taylor]

Bingo! Also Stan and I have no control over how many times a shooter does it, how hot the loads are etc....I had one customer that fired 6 rounds and prematurely wore the throat .030"!

David once asked me to endorse the fire lapping kits. I said no. Only way I would do it is if he would cover the warranty on the barrels when a customer complained/had a problem. Guess what.....

Personally I love those tubbs bullets that's the things that keeps us in business.LOL

 

[ridgeway]

I

No, that is not is not what I meant.... The metal actually humps up over time.

It is like this. Take a torch and cut steel. There will be humps on either side of the cut. Same thing happens in a barrel. I am not talking about carbon on top of the steel, the steel itself. The hotter the flame, the worse the build up of the hump.

I see what you are saying though, there might be some carbon deposits that are part of the humping. But it is not all carbon.

I've never personally saw anything like you speak of...Maybe Frank can chime in and comment...

 

[JFrank]

It’s Going To Be A Long Winter Fellas!

Bart

There’s always Turkey huntin an ice fishin to bide yer time

 

[tom]

It’s Going To Be A Long Winter Fellas!

Bart

You don't even get winter you whiner!



And it's not even out of October yet!




Back on the subject. Don't overlook h4895 in the dasher either, along with rl 15 as chuck mentioned earlier.

Tom

 

[BartsBullets]

What is that supposed to mean?

OK I’m changing my post!

I take back all the mean and hurtful things I said about AR COMP, decoppering agent ect ect!!!

Bart

 

[Roy H]

LOL, Gunsmoke reruns, Festus

 

[johara1]

You know it is funny that for years I never could understand why everyone was having problems with carbon build up and copper. I never had either, cleaned two guns in 15 minutes. Now that I don't use RL-15, Warthog 1134 and Ive rods and freezing barrels .... I do...... jim

 

[JFrank]

OK I’m changing my post!

I take back all the mean and hurtful things I said about AR COMP, decoppering agent ect ect!!!

Bart

Do over

 

[Alex Wheeler]

Barrels are best when fresh, they do not get better with wear. As far as decoppering agent, I think it should be called copper preventing agent. Maybe it has a use in rough factory barrels which Im sure it was designed for, but a good chamber in a good 6mm shouldnt be coppering to begin with.

 

[FrankG]

I

I've never personally saw anything like you speak of...Maybe Frank can chime in and comment...

Ummm.....that's a new one to me.

Brady here at the shop. His AR service rifle has 6k plus rounds on it and there is nothing weird going on with it.

The last five barrels (ammunition accuracy test barrels) I've gotten back from a ammo maker/bullet maker (everytime they burn one out I ask for it back and make cut aways out of them) have been in 308win. Anyways the barrels got pulled when they would no longer hold .5moa for accuracy and the round count on each barrel in order of receipt where.....9xxx rounds, 11,320, 13,xxx, 14,560 and the last one was at 8,400 (the last one was wrecked intentionally testing some cleaning methods) but do the average for these the average round count was approx. 11,250 rounds.

I've also got two barrels in my office in 300wm. One barrel has 3k plus rounds on it and the other is right around 4k rounds on it and again no metal build up per say.

That being said we've taken all but the last test barrel and have cut them in half to look at them etc....and there is nothing that can be measured like there is a hump and or visually seen with a bore scope etc...where the metal is being pushed and built up etc....

carbon building up and tightening up the throat area of the barrel....that I've seen and seen the bore close up like .0001" or so but again no metal being pushed/moved around.

Now I have seen barrels where shooters where cleaning the chambers/throats with a shaft with steel wool or emery cloth on the end of it and spinning it with a drill and gouging up the throats and smearing the metal that looked like someone used the dullest chamber reamer in the world with. I'll call that humping! On stuff like this....please don't do this to your rifle/barrel.

Later, Frank

 

[1K6BRA]

It’s Going To Be A Long Winter Fellas!

Bart

Yes sir, spring is a long time coming this high!!

 

[Stan Taylor]

Bart
You could always work on your physique this winter to get ready for shooting season next spring.