Enduron Powder suspected issue

[Jimbeaux82-2]

I bought 2 types of Enduron powder when they came out, IMR 4166 and 7977. I have at least a half pound of each left. I know that they quit offering it for sale so it is no longer available.

However, I have seen a storage issue which could be a result of Enduron powder chemistry. I have stored about 20# of various brands and types of rifle powder (still in their original cans) in a plastic tub with a loose fitting top. All of the powder containers with the older type of metal lid have quickly and badly corroded to the point I had to change containers to those with plastic lids. I strongly suspect that it is a result of the Enduron Powder but not certain. I have now removed the Enduron powder from that storage bin and put it in a sealed container with one uncorroded metal top to see what happens.

1) has anyone else seen this issue?
2) do you know what the issue with Enduron powder was that caused them to take it off the market?
3) do you think Enduron powder is still safe to use?
4) any other ideas on what might have caused this corrosion?

TIA

Jimbeaux

 

[TEXASforLIFE]

i have a 1# of 7977, but haven't checked or used any yet. bought it for 264wm.

 

[Bruce Mc]

Bad Powder

This evening I was laying out components to load up some rounds with IMR 4451 and I noticed it really stunk. I looked closer at the container and noticed a rusty looking residue around the cap and on the top layer of powder. When I shook the bottle it settled off. I loaded up a ladder test of...

forum.nosler.com

 

[sako2]

The issue you have was the problem. Throw it away.

 

[TackDriver284]

I bought 2 types of Enduron powder when they came out, IMR 4166 and 7977. I have at least a half pound of each left. I know that they quit offering it for sale so it is no longer available.

However, I have seen a storage issue which could be a result of Enduron powder chemistry. I have stored about 20# of various brands and types of rifle powder (still in their original cans) in a plastic tub with a loose fitting top. All of the powder containers with the older type of metal lid have quickly and badly corroded to the point I had to change containers to those with plastic lids. I strongly suspect that it is a result of the Enduron Powder but not certain. I have now removed the Enduron powder from that storage bin and put it in a sealed container with one uncorroded metal top to see what happens.

1) has anyone else seen this issue?
2) do you know what the issue with Enduron powder was that caused them to take it off the market?
3) do you think Enduron powder is still safe to use?
4) any other ideas on what might have caused this corrosion?

TIA

Jimbeaux

I had that issue, I had about 4-5 lbs in one pound containers of Enduron IMR4166 and IMR7977, had them for a year or so. One day I searched for those powders in my cabinets, and noticed that the caps were pretty corroded and when I opened one of the 4166, I noticed rustic vapors seeping out and looked inside the container, it was full of rustic fumes and the kernels looked normal, opened another can, same thing. Opened a 7977 and same issue like the 4166. I contacted Hodgdon and sent them pictures and a write up, they offered to replace them with powders of my choice except the Endurons, so I asked for H1000 and H4350, and they sent me 5 cans of each. I still have several 1 pound containers of 4451, and so far there has been no issues with it.
They discontinued the Enduron powders for those reasons, and no I would not use it, either contact Hodgdon to replace them with a different powder of your choice or use as grass fertilizer. Here is the link to my old post on this issue.

degraded powder

While checking my powder inventory, came across a can of IMR4166 that had one side of the can all rusted out with a hole in it, after opening the cap, i saw a reddish tint in the can. So I came back with a paper plate and poured out half a can of powder, and the powder looked normal, and black...

forum.nosler.com

 

[wvbuckbuster]

I had read of this happening. I had 2lbs of 4451 and never had any issues with it before using it all up. Accuracy and velocity were good. The copper reduction claim I didn't see much if any effect.

 

[Alaska]

4451 Tried it went back to regular IMR 4350 in 30/06 and 300 WM and 338 WM.
Bunch of sales pitch

 

[Jimbeaux82-2]

Thanks for all of the replies. That is exactly what I thought!

Jimbeaux

 

[TackDriver284]

Reason I bought the 4451 was because there was no H4350 which i use for my Creed. It was my replacement until I found H4350, and bought 2 jugs and never went back to the 4451. 4451 shoots ok, but not as good as H4350 and the 4451 burns dirty.

 

[FOTIS]

Hope it is not an issue with my 8133. Looks good so far.

My 30-378 Loves the stuff.

 

[JD338]

Wasn’t IMR8133 discontinued?
It shot great in my 338 RUM. I actually would have chosen 8133 but I had 2 8 lb jugs of Retumbo on the shelf.

JD338

 

[Yoteklr]

I have heard stories of 4166 going bad for at least five years now.
I have several 8lb jugs each of 4955, 7977, and 8133. I check each jug regularly because of the horror stories but all is well so far.
My money is on the problem of non climate controlled storage and/ or just a 4166 chemistry issue.

 

[Alaska]

I have heard stories of 4166 going bad for at least five years now.
I have several 8lb jugs each of 4955, 7977, and 8133. I check each jug regularly because of the horror stories but all is well so far.
My money is on the problem of non climate controlled storage and/ or just a 4166 chemistry issue.

Doesn’t really matter all Enduron Powders have been discontinued by IMR .