Powder scale rcbs balance beam bad?

[rogerthat]

Anyone ever had a balance beam powder scale get out of whack? Recently realized when a buddy did some load development for me that my powder scale was measuring a grain heavy at 41 grains. Needless to say I was getting pressure so we weighed my charge on his scale. Now I’m doing some trouble shooting and it’s weighing one dime (35 gr) at 35.6 grains, two dimes at 69.5 grains, and a 107 tmk at 106.2 grains. Really got me scratching my head on this one. Any help is appreciated

 

[X13]

I had to adjust the counterweight in mine once, made a world of difference.

 

[rogerthat]

Thanks I think I’m at the step where I weight the dines and it’s not accurate

 

[X13]

Thanks I think I’m at the step where I weight the dines and it’s not accurate

I also use these instead of dimes. Obscenely overpriced but more precise than dimes, thankfully I got mine from a relative for free

 

[std7mag]

Yeah....
I'd definitely check with actual calibrated weight checks than dimes or any other such thing.

Especially against a 0.8gr difference in bullet weight!

 

[Caseknife]

I just use the screw foot to zero my scale with an empty pan every time I use it. Also have the RCBS test weight kit. Don't think I would use a dime that gets worn thin rattling around in many pockets over its life span.

 

[Dakotakid]

I check each reloading session with check weights but also use a digital scale to cross check each scale.
I adjust with the foot but there may be a couple bbs under the pan.

 

[cowboy]

Take a penny, nickel, dime and quarters to a fancy jewelry store and have them weigh them on their scales they use for diamonds. Right down the weights, put coins in a pill bottle with the written weights and never use them again except for calibration. You can’t get more accurate and you can use a combination of the coins to check different scale weights.