Tubb Dudt

[Bandit320]

I recently got a free sample of Tubb Dust with some bullets I ordered. It’s supposed to be mixed with your powder and then will reduced copper fouling. Anyone have any experience with this stuff. The sample bag for 1 lb. of powder is really small, just seems like getting a uniform mix might be difficult. Any affect on accuracy? I was thinking of using it with H1000 in a 300 WM. Thanks.

Mike

 

[Bandit320]

Damn phone: Tubb Dust

 

[DTubb]

Figured you might like a response. TUBBDUST does exactly what it says - eliminates copper fouling from occurring in your barrel.
It does not effect powder burn rate or shelf life. I wish I had known about it 30 years ago.. also it is not pressure sensitive like the CFR powder additives. Take you worst copper fouling barrel - clean it and then give TUBBDUST a try.
Dtubb

 

[Bandit320]

Thanks, I appreciate the response. I’ll load up a batch and try it out! Sorry about the mid-spelled topic. Couldn’t figure out how to correct it.

Mike

 

[brianf]

i understand if its proprietary information, but i dont under stand how it works

does the barrel have to be seasoned first?
does each subsequent bullet "pick up" the previous bullets copper and the new fired powder fills in the gaps?
how does it remove the original copper once carbon is on top?
does in encapsulate the vaporized brass and get "blown" out of the barrel?


edit: just found video

in the video it seems the dust is primarily "cleaning" the last several inches of barrel when the temps drop.
if the material works at a lower temperature how would it clean the throat/initial 20" +/- of barrel


thanks
brian

 

[Average guy]

I just received a sample with my DTAC bullets. I’m definitely going to try it. Should be a thoroughly tested product like all of DTubbs products.

 

[Emouse]

what is tubbdust,..what does it contain?

or is it magic pixie dust?

 

[Emouse]

erm,..all the current alliant and RS powders have a de-coppering agent.

 

[brianf]

From what I have found out so fat it’s nothing earth shattering.
If it was you would see a million threads and articles about it.

 

[Deleted member 113831]

Decoppering agents in gunpowder have been around for over 100 years. In artillery it has been tin or even lead that has been added to the mix. In naval cannons it takes the form of a literal tin or lead foil that is inserted between the powder bags. In other types of artillery, it is powdered tin or bismuth that is added to the gunpowder bags themselves.

It has been used in small arms at various times as well. In the 1920's it was discovered that powdered tin or bismuth added to the powder had the same effect in small arms. DuPont had a whole line of powders with the "1/2" designation (3 1/2, 4 1/2 etc..) that had a small amount of these powders included.

They died out because a) the effects of copper fouling weren't understood or appreciated by the general shooting population, and b) Dupont couldn't seem to get the mix exactly right.

So, Tubb Dust is recycling an idea that is over 100 years old. It is novel in the fact that it allows you to adjust your own mix, but not new technology by about a century.

Here is a pretty good article about it: https://www.24hourcampfire.com/ubbt...cs/14171282/october-column-decoppering-agents