  | Retumbo powder ???? |
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05-31-2012, 09:16 PM
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Platinum Member
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Join Date: Jun 2009
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Retumbo powder ????
I decided to reload some bullets this evening so I opened up a new canister of retumbo . I was a little shocked to see that it had clumps of powder in it . Have any of you guys experienced this before ?
Thanks bigbuck
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05-31-2012, 09:53 PM
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Silver Member
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Join Date: Dec 2002
Location: Wyoming
Posts: 139
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Re: Retumbo powder ????
I got a good deal on 10 lbs a number of years ago. Imagine it has to do with the stuff sitting. Never noticed a problem. A couple of light shakes to the canister before opening takes care of any problems...
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06-01-2012, 06:10 AM
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Platinum Member
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Join Date: Jan 2008
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Re: Retumbo powder ????
Retumbo does seem to have the tendency to clump up after sitting. I have also found that when taking apart loads that were a few months old that the top 1/8" or so of the powder in the case had the granulals fused and had to be loosened with a small wooden dowel. However, it did not effect the accuracy or velocity readings of the loads. I think effect is inherent in the formulation.
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06-01-2012, 03:05 PM
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Gold Member
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Join Date: Feb 2005
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Re: Retumbo powder ????
Hodgdon says it's caused by the solvent on the powder not totally drying before they can it.
They say it doesn't affect the performance of the powder in any way, and that has been my experience... my loads haven't been affected.
I just left the lid off my can for a day or so and it doesn't clump any more.
Hodgdon advised to just shake the can a few times to break loose the clumps before opening the powder and using it.
Dan
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06-01-2012, 04:16 PM
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Silver Member
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Join Date: Nov 2007
Location: Near Mt Rainier
Posts: 113
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Re: Retumbo powder ????
Never have seen that problem. Sounds like humidity made it stick together. I do not believe it is dangerous (I have a minor degree in Chem) but it will be hard to get the right charge.
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12-04-2012, 07:34 PM
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Bronze Member
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Join Date: Jan 2012
Posts: 63
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Re: Retumbo powder ????
I sat down to load a batch up for one of my rifles just last-night and noticed this very problem.. opened up a brand-new can and started pouring into my powder measure, nearly flipped when I seen a clump fall out!
Figured I'd bump this thread.. definitely took a little weight off my chest after reading it! Hopefully you're all very-right and it does-not show any effects to burn and velocities and such**
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12-04-2012, 08:07 PM
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Platinum Member
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Join Date: Jan 2011
Posts: 1,763
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Re: Retumbo powder ????
Its normal I see it on a regular basis with Retumbo and H1000, just shake it, it breaks up easy and has no effect on the loads.
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