This is another "it depends" answer....
Some electronic powder dispensers are inexpensive and drop to within about the same as what you are doing now. They are not particularly fast.
I still own and run two ChargeMasters, the older designs. This was to get done with big batches. They are not as tight as folks typically report, but good enough for many tasks. I have given some of the new ones as gifts, but they are also known to be less reliable and don't throw tight or fast in my opinion.
What that does for you is allow you a lower fatigue level for days when you are loading a larger batch. Your focus level and fatigue are higher when you are the machine trickling loads to within a tenth of a grain. With a dispenser, you can relax a little and just watch for over-throws.
You end up spending higher to get faster and better throws. It takes a fast scale with good resolution to do better and those are not cheap. These days, the only servo operated trickle unit to add to a beam scale I know of comes from UK. If you have a good beam scale, this is a good unit.
http://www.targetmasteruk.com/page2.htm
Your options for regular dispensers are reviewed here. You can get an idea of the results as well as the speeds and reliability issues.
And you can see the A&D FX120i with Autotrickle here.
https://autotrickler.com/pages/autotrickler-v4
And the latest competitor to that here.
https://supertrickler.com.au/
The Supertrickler is so new I have no opinion or time on one yet. A Prometheus isn't cheap or easy to get, but was the gold standard for a long time. I now run two AutoTricklers with an Ingenuity modification for the trickler.
https://ingenuityprecision.com/product/ingenuity-powder-meter-preorder/
These are from cottage shops so you get in line and wait. I got mine early and like them very much, but we are talking a significant amount more than a ChargeMaster. In the end, it depends on how much you are loading and how fast you want to go... YMMV.