Dillon Electronic Scale

[TANFARM]

Hey guys , I'm using a 650 for my 9 mm and the Dillon electronic scale. My powder is Vih. N320.

I'm having a problem with consistent powder measurements ......while running a ladder test on several different charges , trying a new projectile, having a deviation of .1 +- on my charges.

If im trying to achieve a 3.5 charge it will deviate 3.4/3.6 etc.

The intent of my test was to run charges 3.4-3.6 grns.

I turned off electronic stuff , fan etc.

This N320 meters well......what am I doing wrong??????

[Alan550]

How are you dispensing the powder? If you're using a powder measure such as the Dillon one, it's only accurate to within +/- .1 gr, and the scale has the same accuracy level. That's the reason most will throw 10 charges and take the average. If your 10-drops weigh 34.5 to 35.0...........well you get the idea.

Alan~^~

[9x45]

OEM Dillon powder throwers are only good to +/- .1 grains with sugar powders, with corn flake powders, closer to .25 grains. That's why you take an average of at least 10.

Edited January 27, 2016 by 9x45

[safeactionjackson]

10 charge average is key. N320 meters extremely well, make sure your scale is level and on a stable bench. I found keeping my scale on the same bench as my press wasn't ideal.

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[Sarge]

Also, try within reason to pull the handle and dump ten charges close to your normal reloading speed. Waiting more than a few seconds and hem hawing around between pulls will cause charges to easily fluctuate.

I drop 3 charges and dump each back into the hopper then drop ten charges at a reasonably smooth consistent pace. I don't even wait to watch the scale to settle between drops.

Make sure the handle gies all the way down and all the way back as if seating a primer. This gets s good complete reset of the hopper every time

[TANFARM]

Thanks to all for this sage advice.......i've been running 3-4 charges through and then attempting a measured charge.

It sounds like the average of 10 charges sounds like the most logical approach........and by the way......if you have ever left a charge on the scale ......you will see the measurements start to vary !!!..This really threw me for a loop...now I just use the initial reading....Correct??

[RiggerJJ]

Don't use a weight displayed on a digital scale that has been on the scale for more than a couple of minutes. Most digital scales have auto zeroing built in the firmware, that's what is happening when you see a weight display drifting after being on the scale for a while...its trying to zero its self.

Edited January 27, 2016 by RiggerJJ

[benos]

Thanks to all for this sage advice.......i've been running 3-4 charges through and then attempting a measured charge.

It sounds like the average of 10 charges sounds like the most logical approach........and by the way......if you have ever left a charge on the scale ......you will see the measurements start to vary !!!..This really threw me for a loop...now I just use the initial reading....Correct??

All correct.