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problems with 550

Well waited 8 weeks to get reloader which wasnt a problem I had plenty of time to read up on subject.  Now having a problem with powder feed .When there is no powder in hopper it works smooth as glass everytime but the shaft seems to have alot of play in it?I see there is a bushing on the shaft but shouldnt be a problem machine is brand new .As soon as i put powder in hopper it has a tight spot right before powder drops .I disasassembled it 2 times and cant see where anything is binding its not failsafe rod.but as i said it seems to be very sloppy in the shaft area.Also i cant get it to throw consistant charges of powder it varies up to 7/10ths of a gram.Should I send the powder measure back to dillon for replacement ? any suggestions would be helpful

Need more info. Using what powder? How much powder is in the hopper? How many grains are you trying to throw? What caliber are you loading? If a handgun caliber, be sure the case mouth is flared at least .010" larger than a sized, unflared case. Be sure the failsafe rod is correctly attached. The top of the rod goes into the oval hole in the rear link, comes out the round hole in the front link.

I rec eived a new powder bar and installed it today no difference if anything its worse it hangs up going both ways now.I am using imr 3031 also tried imr 4895 no difference failsafe rod is in correctly.powder hopper has been tried full and half full with both pwders no difference.I have looked in detail and cant seem to locate what is hanging up but the shaft seems to have an ecessive amount of play?possibly the delran collar sleeve any sugestions would be helpful ive had the press for a month and have not yet been able to load anything.It also throws a very inconsistant charge up to 7/10ths of a grain difference between shells.

I found this to be the area of concern with the Dillon powder measure slide.  It is especially problematic with fine powders like Accurate and Winchester ball.  It will not function at all if you are still using the spring return system.  The upgrade to the 'fail safe' system is recommended, if you have not done so.

My solution, though expensive, was to replace all my Dillon slides with this one:  http://www.uniquetek.com/site/696296/product/T1267  It is amazingly accurate, especially with those fine grained powders!

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