Need Thumler Rotary Tumbler advice - Page 9
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Old 02-13-2014, 12:17 AM   #81
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Interesting. I also tumble for 4 hours per batch, and I'm using the Thumler's high-speed model B.
That is interesting.....here are my conclusions.
1. The high speed is irrelevant.
2. Perhaps you are tumbling more than necesary
3. The proper mix of steel, brass and water is more important than speed.

I have tried shorter tumbler times, but never happy with the results.
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Old 02-13-2014, 12:47 AM   #82
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That is interesting.....here are my conclusions.
1. The high speed is irrelevant.
2. Perhaps you are tumbling more than necesary
3. The proper mix of steel, brass and water is more important than speed.

I have tried shorter tumbler times, but never happy with the results.
I find that 4 hours is the "sweet spot" for impeccably clean brass includiing primer pockets. Three hours cleans really well but vestiges of residue remain in the primer pocket. Clean enough to reload, though.

How clean is clean enough? It's a matter of personal preference at that point.
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Old 02-13-2014, 12:51 AM   #83
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I find that 4 hours is the "sweet spot" for impeccably clean brass includiing primer pockets.
.and I agree 100%. Between you and I, we have produced data which ultimately leads to the conclusion that a higher speed tumbler is neither a necessity or a preference. The right balance of materials, the proper amount of time are the keys to clean brass.....the speed is not a significant factor.
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Old 02-13-2014, 01:54 AM   #84
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.and I agree 100%. Between you and I, we have produced data which ultimately leads to the conclusion that a higher speed tumbler is neither a necessity or a preference. The right balance of materials, the proper amount of time are the keys to clean brass.....the speed is not a significant factor.
That sure seems to he the case based on our experiences relative to tumbler speed. Without our forum chats, I never would have known.

I pick up something new just about each day. It's neat to pick up on the "tips and tricks" that only come from people's practical, hands-on experiences. I enjoy passing them along, too.
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Old 02-13-2014, 02:00 AM   #85
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I enjoy forums like this very much. I've learned a great deal and hopefully passed some info on as well.
Shoot straight, shoot often and keep it in the 10 ring.

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Old 02-17-2014, 02:28 PM   #86
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Question for our wet tumbling friends -

I have used both 0.041" diameter pins and 0.047" pins. I currently use the larger 0.047" pins as these do not get stuck in flash holes. I have never used the even karger 0.062" diameter pins.

Does anyone use the larger 0.062" pins? If so, can you tell us how they perform for you and what type of results you get with them?

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Old 02-17-2014, 03:21 PM   #87
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.and I agree 100%. Between you and I, we have produced data which ultimately leads to the conclusion that a higher speed tumbler is neither a necessity or a preference. The right balance of materials, the proper amount of time are the keys to clean brass.....the speed is not a significant factor.
Tell that to the hamster. We need a low v.s. side by side test. does any one have that capability? If not well, perhaps in the future.
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Old 02-23-2014, 02:06 PM   #88
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Tell that to the hamster. We need a low v.s. side by side test. does any one have that capability? If not well, perhaps in the future.
I only have the hi-speed model B Thumler's, and I've never used the low speed.

Although the description of the hi-speed Thumler's tumbler on the STM website says that tumbling time will be reduced with the hi-speed model, discussions on this thread indicate no significant difference in tumbling time between the low and hi-speed models.

I'd like to hear from someone who has actually used both the low speed and the hi-speed model Thumlers.
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