Powder I.D. reloader-7

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jeeptim

jeeptim

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Got a bunch of powder well 10 1lb cans $40.00 WOO HOO but its old and I'm good with that and all seems to be what it is except 1 can an old can of reloader-7 and what conserns me is went to the gun show today and got some more powder r-7 looks different the old powder has red yellow and a blueish green specks went on line and reloader 7 is I.Ded by the colored specks but the new powder is straight black the lawn could use fertilzer
but we love a sweet deal any info.
 
Smells good well not bad looks good solid cant smash it with your fingers just want ti insure a lil left over red dot, green dot and whatever wasent dumped in a scrap can dont look that way but....
 
Essentially, not knowing where it came from, I would be concerned, if the can was bought opened. You cannot guess that it's the correct powder in the can, and if you have no way to verify, then it's fertilizer.



NCsmitty
 
Essentially, not knowing where it came from, I would be concerned, if the can was bought opened. You cannot guess that it's the correct powder in the can, and if you have no way to verify, then it's fertilizer.
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I agree 100%... If you can not be totally sure what you have DO NOT load with it!!
 
Rx7 changed sources in the early 2000's. Lyman 48th describes the old stuff as "It has a mix of red, yellow and blue identifying granulations." The new stuff, which is what I have on my bench now, is a short extruded powder, dark (black) coloured with a greenish sheen under direct light.

Although Alliant states the burn rate is the same between the old and new versions, I have found the new to be significantly hotter. As in reaching the same velocity 4 grains sooner with the new than with the old, other components being the same. Be careful to match your load data age to which formulation you are working with.

All that said, I find Rx7 to be a very useful powder, but, as others have said, any doubt and you should put it out.
 
This interests me... could someone describe the approximate length of the extruded tubes? Speer 12th ed. from 1995 describes them as very short, so short in fact that they appear to be flakes... is this still the case or have they lengthened some what to noticeable cylinders?

Please post a pic of recent production Reloder 7 if at all possible.

When a company changes something about their powder, they ought to change the name to avoid any confusion or suspicion.
 
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