Zeroing a RCBS 5.10 Scale

rhino62

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BC - Interior
I got an old RCBS Model 5.10 Scale from an old friend who used it for years and who is now deceased. I recently wanted to start reloading again and set the scale up. I was not able to zero it, unless I took some of the lead shot from the pan support assembly. The scale will zero, but I think I will need to put some cotton wool in the pan support assembly, since the remaining lead shot now moves, which again effects the scale for zero. I have checked the scale with known weights and it seems to weight correctly. I would appreciate any advice on whether it is safe to use this scale, since I am mainly loading 45LC. I was thinking of getting an electronic scale to double check the powder weight.
 
Do you have the pan itself?

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Thanks for the replies. I tried cleaning the pivot points with rubbing alcohol., but it did not make any difference, however it is a good way of cleaning the scale.

I do have the pan

I think the previous owner may have had problems, since the leveling base is flattened on one side.

I put cotton wool in in the pan support base, which has stopped the lead shot from moving, so the scale now returns to zero on a regular basis and seems to weight correctly with known weights. I expect it might be that scales suffer from old age, which is kind of appropriate considering its current user!

I have decided to take my wife's advice and buy an electronic scale, most likely the RCBS 750 and to double check my powder weights on both scales.
 
Im in the same boat with a 5-0-5 I just bought in a kit - the kit was previously owned, out of the box, but not used... all the gizmoz are on zero and my gold pan is in the hangy thing pan and I can hear the shot rolling around it just wont zero, the foot screw doesnt have any effect...
 
so I hucked a loony into the gold pan - (loonies are 7 grams on the nose)

7 grams = 108.02 grains according to google converter

the scale needed to be set to, 61 grains (3.9 grams) in order to get the scale to zero

so... should I find a 61 grain weight and put inside the little cup and call it a day ?
 
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