I decided for $75 it was worth trying so went ahead and ordered one. I'll let you guys know how it works in the next week or so.
John
My Lee Classic Powder measure arrived today and I spent some time getting familiar with it and then evaluating it. Due to the rubber wiper, it feels different than any powder measure I have ever used. There is continuous friction throughout the throw process. It is smooth, but there is some resistance in the handle. It make sense when I think about it. With a metal on metal drum, there is still a little clearance, allowing them to cycle nearly friction free. With the Lee Classic, the rubber wiper is making firm contact with the drum, thus the friction. Lee is true to their word. It does not shear grains of extruded powder all, a feature that I really like. As a result there is never any jerkiness to the throwing cycle. A little friction, yes, but no jerkiness. But the big question is how consistently does it throw and how does it compare to other measures?
The best measure I have used to this point has been the Montana Vintage Arms powder measure, a refined, very high quality version of the Belding and Mull. So, I tested both the MVA and Lee Classic using the same protocol. I set each measure to throw 36r of H4350 by weighing ten charges and adjusting each measure until ten throws gave me as close to 360 grains as I could get. Then I threw 20 charges from each measure, threw the results in an excel spreadsheet and got the stats. I don't know if 20 charges is a big enough sample to give meaningful data or not. I'll leave that stuff to the statisticians. Anyway, here's the results:
Lee Classic
Extreme Spread - .7gr
Average Charge - 36.085gr
Standard Deviation - .169gr
MVA Powder Measure
Extreme Spread - .9gr
Average Charge - 35.785gr
Standard Deviation - .241gr
One thing that was interesting to me was that the Lee's average charge was a good bit closer to the ten charges I threw when setting it. The ten charge total was 360.8gr, very close to the average for the Lee. With the MVA, the ten charge total I threw while setting it was 360.1gr but the average it threw in the 20 round test was a bit lower at 35.79.
It remains to be seen if the $72 Lee will replace the $200 MVA on my loading bench. One area the MVA absolutely excels in is with ball powders, with literally zero charge to charge deviation. If the Lee ends up doing that, it will be the only measure on my bench. If it doesn't, I'll use the Lee for extruded powders and the MVA for ball and flake powders.
Either way, I think for $72, the Lee Classic is a heck of a bargain.
John