What are you talking about? Maybe at your retard ranges but come out west where 800 yards is a chip shot and maybe you can learn something.
What is your national ranking in a precision shooting discipline that you do not use an AT or Prometheus?
Do you want to knock off your pathetic dick waving before I ban your dumb ass...again.
I know plenty of National level shooters, many Double Distinguished, that don't know shit about reloading. One does not equate to the other. And if you knew half as much as you thought you did, you'd already know that.
So, knock your bullshit off.
To the OP: Any quality mechanical volume based powder thrower will get the job done with a ball powder. RCBS, Hornady, Redding, hell, even a 100yr old Belding & Mull BR measure will work (actually better than most of the new ones, due to its secondary powder chamber; a very clever design that was 75yrs or so ahead of it's time). I think someone is actually making them again, but they cost more than a Harrell's. I use to pick up B&M's at gunshows and flea markets for $50-$70, since most didn't even know what they were, or they were missing the drop tube (easy to make).
That being said, if you're going to get a powder measure, it's hard to beat the repeatability of a Harrell's or Culver style measure. The "clicks" on them are repeatable, so once you get the weight you want (using a scale to check) you can just right down the number of clicks in your reloading records, and you're GTG from there on.
The Auto Trickler and Prometheus are very nice automated powder measures/scales, but they are intended mostly for cylindrical powders, which don't always meter well in the typical powder drum style measures sold by most of the major reloading vendors. Cylindrical powder kernels can also get crushed/cut when the drum rotates to close off the powder column, before rotating further to drop the charge. That crushing/cutting also causes your movement in the throw arm to stutter, throwing off the charge a little bit (as well as change how the powder settles into the powder column when the drum is rotated back up). It's very important to have smooth, consistent, repeatable throw of the powder measure to achieve consistent charges.
As far as speed, with a ball powder, it's just as fast with a Harrell's as it is with an Auto Trickler. Actually, the Harrell's is a bit faster (I use one for reloading when shooting prairie dogs, where you'll burn through anywhere from 300-700rds a day if it's a big town, and you have a small group of just 2-3 guys).
If you're just doing this (reloading .223) occasionally, you can get by without a Harrell's and just deal with the tedious readjusting of a standard mechanical drum measure. The Harrell's is more about ease in set up and repeatability.
As an aside, always remember:
Ball powders, by their nature are just easier to meter, but tend to be more sensitive to changes in charge weight.
Cylindrical powders typically are harder to meter, but are much more forgiving in charge weight variance.
As they say, there's never a free lunch.