How does a mechanical device cause accidents? Could you give us a rough estimate on the number of accidents you have seen caused by beam type powder scales? Have you seen any stray accidents caused by a digital?
Pretty easy. There was a pretty good example right on this forum.
http://smith-wessonforum.com/139137082-post1.html
In this instance, the pistol held despite having a .44 Magnum's charge inside of a .45 ACP.
These sorts of accidents boil down to one of two things: either the scale wasn't adjusted properly and the operator wasn't aware of it, or the scale was broken and the operator wasn't aware of it.
If a balance beam scale gives better precision wouldn't that be the best choice?
The lack of precision from a digital comes from the nature of it being digital.
If I weigh a charges that average something like 4.45 grains, the digital will sometimes display 4.5, and sometimes 4.4. That's about the limit of what they can display (until you get into more expensive models). They don't give the operator any kind of feedback as to whether or not the charge is varying .1 grains, or whether or not it's rounding.
And to be fair, for the vast majority of reloaders, it simply doesn't matter. If you're not sorting out bullets with imperfections, then weighing and sorting the 40% that remain, .1-grain variations don't matter a whole lot.
A balance beam not only reads out that far, it gives you some idea of how much the charges are actually varying, because the number of readings it can "display" is infinite.
I have read on some of the various forum boards where some users of digital measuring scales do not calibrate every time they use them. Good, bad or just boys being boys?
I routinely check the calibration on mine. I've been using it for more than a year now, and I've never had the calibration weight come up as anything other than exactly 100.00 grams. If I can't remember the last time I checked it, I go ahead and check it. But I certainly don't check it every time, I just take care of it. No tossing it around, no dropping stuff on the pad, and no having it out and open on the bench when I'm pouring powder!
I personally have two digital scales and one balance beam scale. I use the balance beam 98% of the time. Is there something wrong with me?
What you do in the privacy of your own basement or garage is between you and your God.
If I want to use one of my digital scales usually I need to let it warm up for at least 10 minutes. If I don't I get drift. This doesn't seem to be a problem with a balance beam scale. Why then is the digital more convenient that the balance beam?
I don't get any drift with mine. What I
do get is drift off my first dozen or so charges dropped. So I usually cycle the powder drop through that many charges, and then begin weighing them. If I need to adjust, I repeat the process.