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Posted: 7/19/2011 6:48:20 AM EDT
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So I am using my XL650 and the case feed system to crank out what has to be over 5,000 rounds of 40 S&W brass prior to wet tumbling. I am using Dillon's Universal De-capping Die which appears to have a VERY long pin. But as I crank the lever and the inspect the brass, I would estimate something in the order of 1 - 2% of the brass is NOT being de-capped.
I know that some are from a very tired arm and the occasional short stroke, but I also know that I have caught the priming station Re-Seating ejected or loosened spent primers back into the cases. Is it reasonable to assume that the primer cup is some how holding on to the pin and being pulled back into the primer cup and then advancing to be re-seated? One would think, absent the short stroking, that I should get 100% de-capping with this die. I really do not short stroke too often, as much as my arm feels like it wants to. Does anybody make a LONGER de-Capping pin? |
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I think i discovered my issue.
First i did short stroke a few as noted above. Second, as some of you know some primers are taller if you will than others. i don't think was a major factor but i noticed in repeatedly in Winchester cases that the spent primers would not come out all the way, then be re-seated in station 2 of the XL650. Third, I removed the primer feed system and discovered the number of cases NOT de-cappin dropped drastically. I theorize that spent primers, which I saw bouncing around, actually dropped into the primer feed wheel and were then re-seated, Just a theory mind you. BUT the primers did bounce out of the catch cup a few times and without the primer feed wheel there to catch them the number of NON De-Capped cases dropped. biggest problem I had after that was crushing cases as the case holding arm in station 2 is part of the primer feed system. 5,000 cases +,- and maybe 10 crushed, not bad. Now I get to clean all those buggers. |
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Remove the decapping pin and chuck it in a drill. Using emery cloth or fine sandpaper break the edge of the decapping pin so it has a slightly rounded edge. You don't need to remove hardly any metal, just enough to round the edge slightly.
Until this is done primers will stick to the decapping pin and re-enter the primer pocket on the up stroke. |
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Quoted:
So I am using my XL650 and the case feed system to crank out what has to be over 5,000 rounds of 40 S&W brass prior to wet tumbling. I am using Dillon's Universal De-capping Die which appears to have a VERY long pin. But as I crank the lever and the inspect the brass, I would estimate something in the order of 1 - 2% of the brass is NOT being de-capped. I know that some are from a very tired arm and the occasional short stroke, but I also know that I have caught the priming station Re-Seating ejected or loosened spent primers back into the cases. Is it reasonable to assume that the primer cup is some how holding on to the pin and being pulled back into the primer cup and then advancing to be re-seated? One would think, absent the short stroking, that I should get 100% de-capping with this die. I really do not short stroke too often, as much as my arm feels like it wants to. Does anybody make a LONGER de-Capping pin? 
The decapping pins does stick out a long way. If not all cases are being decapped, adjust the deprimming stem down a little. If you adjust the stem down too far it will hit the inside of the case web. So first case you decap go easy on the press handle and don't force it. If the stem bottoms on the web, adjust it up a little. What you are looking for is the middle ground. Stem too high, doesn't decap. Stem too low, will bottom out on the web. Keep at it, you will get there. 
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. Ok, what's the deal with the chicken ? Is that your powder cop ? 
Sometimes an army man I found when checking targets at the range. 
Turkey and ram here. 
But mostly the chicken. He is quite the ham. The chicken and the other silhouette targets are for airgun practice. The chicken is shot at 15 meters offhand. The body is about the size of a nickel. Pig at 20 m, Turkey 25m, Ram 30m. Just something I do to make my pics different, and just starting to become my wacky trademark. No powder cop, just reminds me of shooting silhouettes almost every weekend back in the day. I shot NRA hunter pistol, ISMHA 22 pistol and long range pistol. Hijack over, back to decapping pins.... |
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