Yeah, that seems to be the consensus that the disks don't meter large flake powders well. I'll try to avoid those but in these times, the large flake powders are often the only ones left in the powder safe at the reloading stores at two ranges I go to. I've only seen powder on an actual shelf at an actual FFL. I've used American select and get accurate 124gr copper plated 9mm bullets using 4.8 grains +/- 0.1 grain. My brother picked up two pounds of Unique and he has enough powder for about 3,000 147gr 9mm rounds. I figure if I ever have to load this type of powder, I'll use the disk to charge them and immediately take the shell case out and dump it on my powder pan to weigh it. If the charge is good, I can just put the case in my loading block and recharge it using my lyman funnel.
I'm well aware that the double-disk set is needed for charges for .308 and such, but I'm wondering how many grains of Varget the largest disk can hold, without purchasing the double-disk. I'm not too cheap to order the double-disk ($10 is nothing compared to what us reloaders spend on our addiction, lol). I'm just thinking that if the largest disk can hold 24 grains or so, I should be able to load up my 69 gr. Nosler HPBT on it.
Anyone ever tested to see how many grains of certain rifle powders, the largest disk that comes standard spits out?
Also, is there anything I should do to the Pro Auto disk before using it (i.e. spraying graphite or something else in the hopper to minimize static electricity)? Any little tricks of the trade to minimize fine ball powder leakage?