Checking Digital Scale Accuracy

[snuffy]

I use the check weights that came with the scale

Most digital scales come with 2 CALIBRATION weights, they are much too heavy to know if your scale is accurate weighing 0.5. or 1 grain. The whole idea of check weights is something that's been weighed and made in small increments ACCURATELY. Not some object YOU weighed on YOUR scale which could be up to 1.5 grains off. That induces error across the spectrum of the scale capacity.

If you really need a good set of check weights, grab some coins...

Again, they weigh what YOUR scale says they weigh! What do they really weigh? Sure, I know the gubmint SAYS they're supposed to weigh *.**, but how close do they check?

What some have done weighing objects on an expensive lab scale that's certified/calibrated often, then using them to check their scales, is one way. I don't know anyone that has a lab, do you?

My Lyman check weights work just fine, my RCBS powder pro checks out right on each time I check it. Spend the money, the peace of mind is priceless!

http://www.midwayusa.com/viewProduct/default.aspx?productNumber=612694

 

[blarby]

The "gubmint" has a very vested interest in making sure they all way the same, actually.

Every one I have ever chosen to weigh has been within .5 grains unless it was really dirty, or altered.

If you had 3 of them, and they weighed out...you'd be in the clear.

If .5 grains isn't good enough...you are in that percentile I mentioned. Please purchase checkweights accordingly.