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Which powder cup / scoop are you using?

Is that truly the case though? I would have thought that the closer the scale is to its minimum capacity is where it would be the most accurate. With the Area419 or the glass cup you are zeroing the scale out before any powder, at approaching half of the scale‘s total load limit (when using the fx120)
I like the Area419 scoop, but I only seem to be able to use it with the fx120. And I am about to switch to a different method anyway and sell the fx120.
I did find some good alternatives though.

I suspect the greatest accuracy will generally be in the middle half of min to max (the 25 to 75% of scale range.) That's sort of a generalization based on where these things are designed to run. (i.e. if you're planning on weighing say 100 lbs repeatedly, you don't buy a scale that reads 100 lbs max, you get one that reads well beyond that.)
 
On my V3 I was concerned about the heavy cup which weighed 893 grains. I replaced it with a metal cup that weighs 343 grains.
I made the cup from a stainless shot glass from Amazon. I used a Dremel cutoff wheel to cut the height to the same as the glass from Autotrickler, and soldered a slim handle onto the side. It works great.

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Mine weight-400-650grs.. taller than all that have been listed so far..
A lot better than the goofy 419 handle, smaller than the MK machine in diameter, and you can actually use the shot glass for its intended purpose..
I just print this. 19 grams. no splashing, 2" tall for the V4
 

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I use a Wendy's ice cream spoon. It does take several spoon fulls in the pan on my digital scale to get the 230 gr. I need in my .50 BMG loads. I just tap the spoon with a finger to finish the load out to its final value.
 
My hillbilly autotrickler. Powder cup is 140.86 grains or a tad over 9 grams. I throw on the RCBS, transfer to the laundry detergent measuring cup then finger trickle through the hardware store funnel. I can throw, trickle to weight and seat a bullet in about 45 seconds for about 75 round per hour give or take. I wrote the weight of the laundry cup on it with a sharpie as a check weight. Not fancy but it works for me. I will probably upgrade to a real autotrickler some time, just not in any hurry right now.
 

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You might look at measuring cups in the kitchen section on amazon Stainless Steel Measuring Cups

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Cheers
Trevor
 
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