Today I loaded a bit with that Harrell Culver powder measure.
Impressions:
First: It is crazy smooth. That is clearly due to their use of needle bearings. I cannot stress how smooth this powder measure is. Think fidget spinner.
Second: it dispenses in the reverse of my other powder droppers. They drop when you move the handle up and fill when you lower the handle. It drops when you lower the handle and fills when you raise it.
Third: It's easy, which is probably the greatest thing I like about it. Every other powder measure I've used has been a guesstimate of how many turns it takes to jump full grains. Is it 1/16 of a turn to drop 0.1 grains? It drove me nuts.
These Culver powder measures are not that way. You set it to a hash mark—I've chosen the first long hash mark—throw a couple of cases, and cycle that powder back into the hopper.
If you throw, say, a 5.0 at that hash mark and need to throw a 5.2, then you rotate the knob three clicks per 0.1 grain.
Yeah, I should have mentioned that. It's a click-based system like the very best rifle turrets. It has audible and tactile clicks that you cannot miss.
To get to 5.2 grains, you need to turn it six clicks. That's three clicks to 5.1 grains and three clicks to 5.2 grains.
To get to 6.0 grains you'd turn the nob 30 clicks.
Fifth: It is almost always right. I ran eight loads of 5 rounds each. Each load was different by at least 0.4 grains. It threw two under throws, and one over.
So, how much was it off? By less than 0.033 grains. Each of these failures occurred when I'd just changed the throw from, say, 5.6 to 6.8. The 3 clicks per 0.1 is pretty accurate; if it is off, it is never more than two clicks.
Cons: using the handle. Because this is on needle bearings there is zero resistance. If you do not use the same technique every single time, you might have errors. The directions it comes with say this. So, to better understand what the instructions meant I threw a bunch of test drops last night.
The short of it is, as long as you are not a double tapper or double clacker and you move the handle in the same way every time, you'll not have issues.
If you do, the issue is always no more than + or - 0.033 of one grain. Even when I tried, I could not get it to drop more or less than that. Now, that may change with a different powder and the amount of powder dropped. My largest drop today was 6.8grains of Win 244
Here is a link:
https://www.harrellsprecision.com/produ ... -measure-1
