Discussion in 'Handloading and Reloading' started by Guy48065, Apr 17, 2021.
Good to go?
Are you effin nuts?
A forum search will bring up plenty of previous threads like this one.
We even had a member conduct his own testing and there were no ill effects.
ETA: I only run them for a half hour or so to remove fingerprints etc.
I wouldn't recommend running them for hours on end.
i have dry tumbled live ammo without issue
i have pulled the bullet and found the powder looks exactly the same as before
i wouldn’t do it for several hours, but 20mins is not going to hurt anything
Have speculate that much tumbling on the way to front lines is wet, very wet.
manufactured by rotary tumbling...
And my Varget loads crunch. That powder isn’t moving...
Consider the jiggle in the Everyday Carry of the average American man’s keister. Twenty minutes to keep ammunition clean and corrosion free is of no issue.
Also considering that the tumbling doesn’t clean the insides of dirty cases, not near enough energy would make it to the already impact resistant, and dry lube coated, plastic that is smokeless powder.
And further contemplate that tiny amount of energy is many magnitudes smaller than what is needed by a firing pin to ignite a primer.
I have clean, shiny ammunition that is also worry free.
(That would be a “Good To Go” @Guy48065 )
Because they get stuck in the dishwasher drain...
I saw a lot of that in the early / mid 90s at guns shows. People were hawking old discolored stuff that was cleaned. This was really old stuff. While I heard rumors about the stuff I personally never saw the damage and the stuff did vanish from the shows.
Would I worry about it? Not really but I have yet to have a need to tumble loaded ammunition. I just toss out some links and tell people to decide for themselves.
just because they tumbled the ammo.
There was some other problem.
"You made that?!"
Personally, my opinion is I very rarely have any need to tumble live ammo (although I did tumble some tarnished M2 Ball for my Garand) but if I did, from what I've read, I'd do it...
RCBS: Do not attempt to clean loaded ammunition. To do so could result in cartridge detonation causing serious personal injury.
Hodgdon: It is the policy of Hodgdon Powder Co. to recommend against ever tumbling or vibrating loaded or reloaded ammunition. Vibration for even short periods of time may degrade propellants or change their burn characteristics. Vibrating propellants may cause coatings to wear off and edges or
ends to erode. Dave Campbell Hodgdon Ballistician.
Federal: Can I put unfired ammo in a case tumbler?
A: No. Placing ammunition in a tumbler can be very dangerous. The risks are detonation inside the tumbler or changed powder characteristics that can result in serious injury during firing.
Lyman: Q: Can I tumble loaded ammo?
A: No, this can be very dangerous. Tumbling loaded ammo can break down the powder causing extreme pressure problems.
Sierra: Q: I have some loaded ammo that is pretty badly tarnished. Can I just put it in my tumbler and clean it up?
A: No. The deterrent coating of the powder may be damaged, which speeds the burning rate. The simple answer here is, "No, don't do it."
But I'd be willing to bet that the cautions about setting off a round were written by a lawyer, not a ballistician.
All of it was filthy (dirty/greasy/oily/grimy).
About half of it was probably both MkVII and MkVIIz .303Brit milsurp. O'course no amount of tumbling is going to effect properly-loaded MkVII (tightly packed cordite spaghetti) but MkVIIz, ... perhaps.
Much of the remainder was 7.62x51 milsurp ...
Some here probably remember Century's "Shooter's Dream" 7.62x51 milsurp ammo that they offered about 20 years ago. Many of us quickly decided that a moniker of "Shooter's Nightmare" would be more apropos.
I am convinced that most of the "Shooter's Dream" that I received was track floor-sweepings. It was all filthy and much of it was damaged. Some of the the case markings that I found strongly suggested boot-prints to me.
It was all so filthy that I felt that I had to clean it before closely inspecting each one before shooting it.
As I recall, my VCC cleaning runs would be with a not-maxed-out bowl (if they are freely "swimming" the cartridges experience very little of the vibration) for no more than about an hour.
I have never experienced any issue from tumbling ammunition.
The tumbled ammo: This had clearly been subject to some heavy corrosion. Cases were discolored, some with distinct black blotches. Before I knew better, I purchased some on the word of the seller that it was just fine despite some discoloration. The price was certainly right I thought. I managed to successfully fire exactly 8 of them. This was before I knew about pressure signs, and thought beating the bolt handle open with a piece of 2x4 was a symptom of the corrosion rather than pressure far in excess of what was acceptable for 7.62 NATO. The 8th round blew out the primer and my extractor, and seized the empty case in the chamber. A trip to the gunsmith, who was familiar with this ammo and it's problems, also confirmed that my headspace had advanced beyond maximum and needed to be corrected. After repairs to the rifle, I sunk the rest of the ammo in a very deep swamp, never to be seen again. Lesson learned.
Clearly the ammo was tumbled for a significant amount of time...I don't know how long...so this is a worst case scenario. In my opinion, and evidently the opinion of some powder, ammo and reloading equipment manufacturers, tumbling live ammo is a bad idea. A little bit to remove lube or dirt might be OK. I'll stick to a rag with alcohol. I also believe there is no comparison to the high frequency-low amplitute vibration of a vibratory tumbler to the low frequency, high amplitude vibration of a vehicle. Put a bucket of brass/media in your truck bed for a year, and see if it's as shiny as an hour in your tumbler.
I think we all believe there is a difference between the two, right?
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