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Inconsistent powder drops

Trying to get my uncles Sq D B going after 3 yrs of no use. Was trying to get a powder drop weighed and it was all over the place. Sometimes it wont drop any at all ... sometimes a completely full case and then back to nothing or a half full case. He has 2 of them actually sitting side by side. 1 is set up for 9mm and the other 45 acp. The 9mm drops a precise amount each time and has the small bar. The 45 is the drop we are having issues with. I'm not a Dillon user so I dont know where to start looking. Please help.

Is the failsafe rod hooked up correctly? Is the blue wing nut tight enough to force the failsafe rod to fully retract the powder bar?
Be sure you are flaring the case mouth at least .010" larger than a sized, unflared case mouth measures. Be sure the hopper has a decent amount of powder in it to start, then throw ten charges and dump them back before you begin weighing charges.

I've just loaded my first thousand rounds. I was frustrated by the same problem for a few hundred rounds. Keeping the powder measure at least half full fixed it.

few, the type of powder can make a difference.

Another vote for keeping the powder measure at least half full. That solved a similar problem for me.

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