I use the Redding 10X Competition for Pistol, It meters every powder I have tried bang on 99% of the time. I have an RCBS 1500 Digital Scale and a Gempro Digital as well that I switch between. I cant say enough about the accuracy of the Redding Competition Powder Throws. I used a Harrell's Shutzen as well for a while but it was honestly not quite as repeatable as the 10x
I use Win231, VV N320 and N340 for 45acp depending on bullet weight. I tend to load my 230gr @ or close to max to get 850fps out of a USP Tactical.
For 9mm I use VV N340 or VV N350 for 115gr and 124gr and N320 @ Max (3.9gr gets me 990fps) for 147gr for the P30L
For the 10mm I am getting I will probably use Longshot for the Hot loads. But I have not loaded for 10mm yet but will start as soon as the Pistol arrives.
For Rifle I use a Redding Competition as well I think it is the PR-50 it is also 99% accurate with the powders I use including "Stick" powders. From what the manual says it is the most accurate @ 30grains of powder. Right now I am only loading 62gr and 77gr .223 for 2 rifles so depending on powder its is 23-27gr's. I am getting a new 308 rifle soon that I will work a few loads up for, I am hoping that it works as accurately towards the maximum that the measure can throw.
Honestly I considered getting the electronic dispensers like the Chargemaster but I dont see it being any faster than my current setup or anymore accurate, since switching my rifle measure from RCBS over to the Redding I see a marked improvement on round to round consistency and if I was not so compulsive in checking the weights, I could get away with every 20th round and not see a problem. If you see a used Redding BenchRest or Percision Rifle on the EE for sale I would not hesitate to snatch it up, they are excellent measures.