I have been reloading for a 338lm with h1000 and retumbo. From what i have read, these seem to be the go to powders. I have tried loads with both 250smk and 300 bergers with no rime or reason with groups. Both the canisters of h1000 and retumbo have been sitting in a garage for 5+ years where the temps fluctuate from 100+ to freezing. Will this powder degrade any? Is it worth trying to run these bullets again with new powder?
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Powder stability question
- Thread starter travbob
- Start date
Will it degrade? Yes. Will it degrade enough over your lifetime to matter? No (if kept sealed).
Just as an FYI, I had really shitty luck with Retumbo/H1000 with Berger 250s and 300s. They shot no better than 1/2MOA no matter what I tried. I swapped to SMKs and instantly shot 1/3 and sometimes 1/4.
Just as an FYI, I had really shitty luck with Retumbo/H1000 with Berger 250s and 300s. They shot no better than 1/2MOA no matter what I tried. I swapped to SMKs and instantly shot 1/3 and sometimes 1/4.
M
milo 2.0
Guest
I think I'd find a more stable environment to store my powder. There's no powder company that will tell you to store powder over 70 degrees. Powder stored in original containers, stored properly last a long, long, time.
There's been some discussion of VV 500 series powders which I've shot a lot of oxidizing after opening a jug. Mine get actually gets shot so quick after opening a pound, I don't see it. But, C. Dixon has a 2lb jug of N570 that he said was given to him as a promo when it first came out, maybe 6 years at the max. That shit looks so bad there's no way I'd charge a case with it, so something is up??
To answer your question, I'd retry with new powder.
There's been some discussion of VV 500 series powders which I've shot a lot of oxidizing after opening a jug. Mine get actually gets shot so quick after opening a pound, I don't see it. But, C. Dixon has a 2lb jug of N570 that he said was given to him as a promo when it first came out, maybe 6 years at the max. That shit looks so bad there's no way I'd charge a case with it, so something is up??
To answer your question, I'd retry with new powder.
M
milo 2.0
Guest
By switching both at the same time, you're really not running a test. You've just abandoned your load? Try SMK's with old powder, or Berger's with new.
