Header banner
Revain logoHome Page
Sarah Smith photo
Germany, Berlin
1 Level
473 Review
0 Karma

Review on πŸ“ Fuzion Digital Milligram Jewelry Scale 50g/ 0.001g, Portable with LCD Backlit, Tare, Powder Measurement, Micro Scale for Powder Medicine, Gold, Gem, Reloading, Batteries Included by Sarah Smith

Revainrating 4 out of 5

Cheap and accurate scales for manual loading of ammunition, but you need to understand its limitations.

Accurate weighing requires knowledge of scales. Electronic scales with strain gauges are most accurate in the middle of their range and least accurate at the ends. It's a 50g balance, so in the 772-grain range. The best electronic scientific balances ($5000+) with expensive load cells still provide good accuracy at minimum and maximum scale capacities. However, when weighing is critical, it is best done on the difference in the middle of the range. This means that you are not dependent on the tare function, but start with the weight on the weighing pan, which places it exactly within range of the load cell. You write down the original weight, add what you weigh, and then subtract the difference. I did just that in my review of these really cheap scales. A 45 case + primer weighs about 93 grains, so that's about 8% of the weight capacity of a 772 grain scale, which means the load cell needs to be accurate. I tared the Fusion when there was nothing on the cup. I then placed an empty box in the center of the bowl and noted the weight (calculating my target + 6.2g of gunpowder). Working fast enough to bypass the 180-second auto-off, I removed the case and added about 6.0 grains of powder before returning the case to the center of the scale. I then placed a pipette of Frankford Arsenal Powder over the case's neck and added powder to the weight I needed. All weights are listed in the table. Also, before I started, I placed ten pans in one pan and tared the scientific balance (0.01g total) to compare to the balance after adding the powder using the Fusion Balance. You can see that the sum of the totals added to the 10 cases using the fusion scale agrees exactly with the scientific scale. so good! Now a bad thing. I have found that if you tare a bowl on a Fusion scale and slowly pour powder into it, you will never register the weight. The tare function seems to re-tare the scale when it thinks zero is slowly drifting. I've added up to 6 grains of powder this way and the gauge never showed anything other than zeros. When I removed the pan, poured it out and put it back on the scale, the result was minus 6 grains. However, as soon as the scale displays the weight it has determined, this is not a problem. If you attempt to add slowly after using the tare feature all bets will be void. I keep mine and find it to be fairly accurate when used properly to manually load ammo.

Pros
  • Quality construction
Cons
  • Socket required