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Dillon Automatic Powder Dispenser

Posted: 24 Apr 2018 15:19
by LowKey
I've often wondered whether the amount of powder dispensed by a Dillon Square Deal B might vary depending on whether the powder measure tube is near full or near empty.

Since I wasn't sure, I've always tried to keep the powder measure near full. However after many reloaded rounds, curiosity prevailed and reloading continued until the powder measure approached empty.
Spent Primers Awaiting Proper Disposal.JPG
The weight of the powder charges dispensed was verified with the powder measure near full, near empty, and various points in between. Throughout the full range of powder levels, the weight of the powder charge remained consistent with no need for adjustment.
Near Full Dillon Powder Tube.JPG
As a side note, I believe the Dillon Square Deal B mechanically dispenses powder by volume. The consistent volume of powder dispensed for each casing resulted in a consistent weight of powder as well.
Near Empty Dillon Powder Tube.JPG
This was a very narrow survey using just one brand of powder, Winchester WST.

Re: Dillon Automatic Powder Dispenser

Posted: 24 Apr 2018 23:41
by Archer
Most powder measures operate somewhat better with a bent sheet of metal in the powder hopper to act as a baffle so that the powder weight above the chamber is consistent.

Dillon measures have a similar idea where there's a plastic roof in place of the sheet metal over the chamber. It isn't a complete baffle but it helps.

You can augment that by putting a baffle in the Dillon measure. You can either make your own out of light sheet or there are available aftermarket generic or it's possible one sold for a different brand will work with the Dillon.

http://www.uniquetek.com/product/T1278
https://www.midwayusa.com/s?userSearchQ ... PerPage=48

Re: Dillon Automatic Powder Dispenser

Posted: 06 May 2018 17:11
by Archer
In addition, mechanically I think all the Dillon measures are pretty much the same with the exception of a handed base you probably won't notice unless you are looking at them side by side.