Scott Parker does it again

[94ranger]

I have an M5 I want him to tune. Do I need to call ahead or just send it in with a check?

 

[USMCDOC]

My daughter just bought one for me off evilbay.. sent it to him.. hopefully the wait won't be too long..

 

[xring]

What would be the absolute Best old Scale to buy for Scotts magic . I like the idea of magnetic dampening , and I seem to recall some Company used oil dampening . Would the Lyman M5 be best ? Would a second or third choice of Scales be comparable to the M5 ? TIA.

 

[sfldiver]

My M5 has been with Scott since the 3rd week in August. I've reached out to him throughout the process and he's always responded after a couple/few days. I called him last week a couple of times and he called me back last night - he indicated my M5 should be on it's way back to me this week. His work is so highly praised that I'm really looking forward to incorporating an accurate and repeatable scale into my reloading.

 

[R.Morehouse]

Scott did one of these for me that he located. It is an old RCBS Precisioneered Powder Scale that works as good as the M5 of his i have here. View attachment 99105

 

[dedogs]

Would the Lyman M5 be best ?

YES dedogs

 

[DHuffman]

Scott did one of these for me that he located. It is an old RCBS Precisioneered Powder Scale that works as good as the M5 of his i have here. View attachment 99105

Nice, beam viewer for the weak eyed older generation. I'll check into it.

 

[Brians356]

As I said in my original post--with 18.5g of H322 I get one up, one down and then the beam settles on the white line. This is with the beam resting at the bottom of it's travel on the main frame and pouring the powder into the pan somewhat slowly (i.e. NOT DUMPED). A heavier charge may require a few more swings-- I don't know yet asI haven't tried. I suspect that if the powder is always poured slowly there won't be any wild movements of the beam.
As far as I know the magnets are original--Scott did not mention having to replace them. dedogs

The apples-to-apples test (easy to set up in 2 minutes) is to start with the beam balanced at zero (pan empty) and deflect the beam to the bottom of travel, then release it. Count how many times the pointer crosses zero (in both directions) before it truly stops. My OEM M5 magnets allowed 16-18 crosses; with new magnets that was reduced to 8-9.

Pouring powder into the pan (at whatever random rate) is useless as a universal comparison or quantification of damping action.
-

 

[dedogs]

Pouring powder into the pan (at whatever random rate) is useless as a universal comparison or quantification of damping action.

You seem to think you know more about these scales than Scott does so why don't you go argue with him.
I simply posted to say that I am happy with the scales performance and I am. dedogs

 

[Brians356]

You seem to think you know more about these scales than Scott does so why don't you go argue with him.
I simply posted to say that I am happy with the scales performance and I am. dedogs

"Read three times, respond once." Words to live by.

Firstly, I've yet to read anything Scott Parker has written about damping. Have you? Did you discuss damping with Scott as it relates to his work on your scale? I didn't think so. Secondly, I never implied, and certainly never claimed that I know more than S. Parker about these scales. If Scott would ever answer a single question I've asked at different times in these threads, I might have some clue about what he know or believes about damping (for one item) but he hasn't responded. Thirdly, I'm not arguing with you about anything. I'm trying to find out how your scale's damping performs after the rebuild, but you didn't comprehend what I was asking, and after I clarified that you suddenly seem defensive about it.
-

 

[R.Morehouse]

The apples-to-apples test (easy to set up in 2 minutes) is to start with the beam balanced at zero (pan empty) and deflect the beam to the bottom of travel, then release it. Count how many times the pointer crosses zero (in both directions) before it truly stops. My OEM M5 magnets allowed 16-18 crosses; with new magnets that was reduced to 8-9.

Pouring powder into the pan (at whatever random rate) is useless as a universal comparison or quantification of damping action.
-

I tried what you suggested on my RCBS pictured above with the laptop. I watched it on the camera and it crossed 2 times. I repeated this 5 times to be sure and just 2 times is it. I set up the M5 and did the same thing, it crossed the center line 5 times consistently. I have no idea the magnet situation. Both scales work perfectly.

Regards
Rick

 

[dedogs]

but he hasn't responded

Are you SURE about that? dedogs

 

[sfldiver]

FYI - Scott definitely considers the effectiveness of dampening when he works on a scale. I know this, because I very recently had a conversation about my M5 scale he is finishing up, and during our conversation, he brought up the fact that my M5 was dampening very fast, and he therefore did not suggest changing the magnets.

 

[sparker]

"Read three times, respond once." Words to live by.

Firstly, I've yet to read anything Scott Parker has written about damping. Have you? Did you discuss damping with Scott as it relates to his work on your scale? I didn't think so. Secondly, I never implied, and certainly never claimed that I know more than S. Parker about these scales. If Scott would ever answer a single question I've asked at different times in these threads, I might have some clue about what he know or believes about damping (for one item) but he hasn't responded. Thirdly, I'm not arguing with you about anything. I'm trying to find out how your scale's damping performs after the rebuild, but you didn't comprehend what I was asking, and after I clarified that you suddenly seem defensive about it.
-

I change out magnets if I determine that there is a problem that is magnetic in nature. Such issues are generally, readily apparent. Various scale models have different levels of dampening. Within that, there is some variation as well. In general, 10-10 scales have quite robust dampening. Reddings on average have the mildest dampening.

Scott Parker

 

[Brians356]

I tried what you suggested on my RCBS pictured above with the laptop. I watched it on the camera and it crossed 2 times. I repeated this 5 times to be sure and just 2 times is it. I set up the M5 and did the same thing, it crossed the center line 5 times consistently. I have no idea the magnet situation. Both scales work perfectly.

My old RCBS 5-0-5 behaves similarly to your RCBS, very abrupt damping. You M5 magnets must be much stronger than mine. I wanted my M5 to dampen much more abruptly, since the OEM magnets seemed to have become quite weak. When I found (through a lot of trial and error) the neodymium magnets I use now, I stopped trying to fine tune any further. There's a neutral middle ground where damping is good but there is no apparent disruption or influence on the free balance function. Perhaps the optimal approach would be to retain the weakened OEM magnets and somehow re-energize them, but I gather from research that is not easy to do. Scott, I would be interested in knowing, in general terms, what you use for replacements in M5s, if it's not a trade secret. ;-)
-

 

[Brians356]

Are you SURE about that? dedogs

I stand corrected. Scott did reply to a question on magnets on 1 August, 2016. Thanks for hinting I had missed that.
-

 

[joelisa]

So did he modify the damping?
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I just checked my 5-0-5 (not tuned). Overshot is 2mm for a 12.5mm of deflection, roughly 16%. This results in 0.5 critical damping, which is not too far from optimum. Since the magnets are E-shaped, it wouldn't be easy to find a replacement that fits to the scale.

I rather would love to have the sensitivity increased by 2 or so. My 5-0-5 gives a deflection of 0.5mm for 0.1grn.

BTW, for the test I used for a test weight a piece of 80g/m^2 printer paper.
A square of 9mm x 9mm gives 0.1grn, 28.5mm x 28.5mm gives 1grn.

-J

 

[sfldiver]

Received my M-5 from Scott last week. After using it a bit, I'm VERY HAPPY with the scale. As Scott explained to me when he called me after completing the work, my scale has strong dampening, which makes it very fast. He discussed the possibility of changing magnets, which would increase the sensitivity, but I decided not too, based on what he suggested was his preference. After significant testing on my part, it's EXTREMELY Repeatable and has already saved me an enormous amount of time with my reloading. My newer RCBS M500 scale constantly needed recalibrating (often every 2nd or 3rd powder charge) while reloading. However with the M-5 Scott tuned for me, I've tested it using calibration weights very often during my reloading sessions, and even after 30+ charges it's still deadly accurate and repeatable.

Thanks Scott!!!

 

[dickn52]

+1 to the M5.

 

[Cochran]

+1 to the M5.

I hope so. I just bought one off ebay since I destroyed my 10-10 the other day.