Allgoodhits Posted January 21, 2008 Share Posted January 21, 2008 I stumbled onto something while installing the Uniquetek powder measure adjuster that may be useful to some of you. My powder measure was set to drop 3.9 gr of Bullseye, and wanted to go back to that. Following the Uniquetek directions, I removed the powder bar from the powder measure etc. Before unscrewing the Dillon adjuster and the powder insert, I used a dial caliper to measure from the foreward area of the powder bar to that position that the powder bar insert had been adjusted to. This "cavity" would be the cavity that the powder would drop through. I thought if I measure that cavity, I could repeat that dimension, after installing the Uniquetek adjuster, and save some set up time, when going back to my 3.9 gr of BE. I did not know what the micro reading would be on the Unitquetek, but if I adjusted the dial until the cavity dimension was duplicated to my previous measurement, then that should be darn close, since I would be recreating the size of the cavity for the powder. Wow! What a find. With some control data, you can have a means of setting a powder to drop predetermined amounts by weight of a certain powder. I checked and rechecked this numerous times and it seems to be pretty darn close. The Uniquetek device is a neat trick and with control data one can certianly repeat previous loads, and predict future loads. I have leaned by accident, that I can do all of that without the Uniquetek device. The downside is of course to get to the powder bar insert, you must remove the powder bar from the powder measure. Here were my findings. Next time you take your powder bar out, measure the dimension. In fact measure the dimension on more than one powder bar that has a known drop weight of a powder, then start collecting data. Here is what I found. With a measurement from the "V" area of the powder bar to the near edge of the powder measure insert of .287 then that (my) measure would drop, 4.5gr of WST, or 3.7gr Clays or 5.1gr of BE. BTW, my Uniquetek would read .130. These numbers do not have to be in sync but they prove consistency later. By increasing the size of the cavity to .292, an increase of .005 the measure would drop 4.6gr WST, 3.75gr Clays or 5.2gr of BE and the Uniqutek would read .135. By increasing the size of the cavity to .297 the measure would drop 4.7gr WST, 3.8 gr of Clays or 5.3gr of BE and the Uniquetek would read .140 A powder bar insert measure of .250 would drop 5.1gr W231 and the Uniquetek would read .090 ....and my first discovery was the original powder bar insert measure of .280 which dropped 3.9gr of BE with a Uniquetek reading of .120. This is neat. As now I know that a .005 movement of the powder bar insert will give me a 1/10 grain change in WST & BE and about a half/tenth gr change with Clays. With some more control data, in a few minutes, I can set my powder measure(even without a Uniquetek adjuster) to drop pretty darn close to what I desire, then return it to a different known setting. Hope this is useful to you. BTW, I don't know what powder bars or inserts I have. But I have three Dillon Powder measures and the bars and the inserts are all the same. Martin Link to comment Share on other sites More sharing options...
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