Thinking about getting a eletronic scale?

[LeftyTSGC]

I did a little looking around, not exhaustive though, and all I could find was that the GemPro's listed Resolution is 0.02gn. Resolution and accuracy are not related. An instrument's resolution could be 100X better or worse than it's accuracy. There could be a value where the accuracy matches the resolution, but nowhere else across the range. Also, an instrument may or may not be repeatable to it's resolution - that is an entirely separate matter, and repeatability can be more the important quality if trying to duplicate an exact recipe that never changes. Doesn't mean the value is accurate, just that it's the same value for the same mass (weight) every time.

Understand I'm not questioning the quality of the GemPro, just trying to clarify what the difference is between resolution and accuracy.

So out of curiosity, is the accuracy specified as 0.02gn?

Here is the GemPro website with data, it talks accuracy.

http://www.myweigh.com/gempro.html

IMHO its a great scale, you learn to use what you have and you will master it.

 

[OCD41911]

Thanks Lefty! You beat me to it! Per the GemPro manual 0.001ct = 0.003865gr.
Also try: http:/www.accurateshooter.com/gear-reviews/gempro250-digital-scale-review/

 

[RealGun]

Before you make too much of the degree of accuracy, consider that a scale becomes very nervous and unsure of its conclusion unless it does a rounding routine, transitioning to fewer decimal places. You only need high accuracy for very small weights, all in proportion. These things may have a fast and slow mode, wherein "slow" discards some accuracy and gives a more steady reading. We won't be using these things in white rooms.

 

[ranger335v]

"Except that while the electronic scale is settling, I can be doing something else while with the beam scale, I must be actively involved with the weighing operation. That is where the time savings is. ... But the time savings is small and can be easily wasted."

It sure is and can!

I've been reloading since '65. I own three magnetically damped beam scales and have experience with perhaps a dozen others. Every one I've used settles within three swings, between two or three seconds. Even if a digital's reading could be trusted in half that time I couldn't accomplish much in the time difference, YMMV. And, critically in my experience for a powder scale, digitals tend to be slow and quirky in how well they follow a trickler! Digitals always display something even tho it may keep shifting a second or two; I suppose some think that's "fast"? I find it refreshing if amusing when HONEST people admit they keep their beams around to confirm their digitals. I'm yet to see anyone say he keeps a digital to confirm a beam scale!

Any sensitive scale is subject to air currents. Digitals add sensitivity to temperature - both ambient and internal, to power line voltage AND power waveform distortions, to stray magnetic fields, to component aging and how level it is. But, other than all that, I must admit digitals are "just as good" as beam scales ... until they fail. ALL reloading electronic scales are made cheap and, believe me, cheap electronic stuff WILL fail!

I did use a slide rule when I worked in the early days of the space program but I suggest no one here get too smug about that. Slide rules took us to the moon and it was us that handed you your pocket calculators, PCs, DVDs and now cheep but quirky digital scales as freebies on a platter; none of YOU smug green kids did it! And after WW3 starts and all the wunnerful electonic gizmos we developed have been fried with an EMP, those of us who kept our slip-sticks can still do our homework. And keep reloading with our beam scales!

Bottom line, anyone thinking his magnetically damped balance powder scale is "slow" or hard to read is using it ineffiecently ... or his magnets are dead.

 

[GaryL]

Here is the GemPro website with data, it talks accuracy.

http://www.myweigh.com/gempro.html

IMHO its a great scale, you learn to use what you have and you will master it.

Thanks. That's impressive for a little scale like that.

The other sites I checked only had the resolution table.

 

[Robert101]

Go Ranger335!

 

[Potatohead]

deleted smart alecky remark