This is not an earth-shattering new idea but just a simple tip which may be useful to some.
Most basic balance scales seem to work reasonably well for ammunition reloading - but they do have inherent parallax error and some of them also have rather crude graduation markings. So, if you are pedantic with your loading weights you may find that when you complete your reloads you also get eyestrain and a crick in the neck. Is there a solution?
The attached photo shows my iPhone with the “magnifying glass” feature turned on. (Note: NOT the camera). The phone is placed in a simple cradle directly in front of the balance scale. I chopped up a cheap thermometer and glued part of the temperature scale to the rear post of the balance scale. (An identical thermometer is shown in the photo). I scribed a heavier line along the lever arm of the scale to make it more perceptible.
This allows a clear LARGE picture of the powder load with ZERO parallax error. I can literally see the scale move when I drop in one or two kernels of powder. I have seen cameras set up to do this but using a mobile phone, which nearly everybody has, is simple, trouble free and cheap.
Some of those electronic powder throwers do look pretty nice though.
