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9mm Jamming on ejection

I have a square deal b in 9mm that on occasion jams as I am raising the handle. I thought it was the primer jamming but now know, after taking it apart and checking everything, that is is the round as it is being ejected. On the 1 in 15 rounds that jam if I reach around and pull it free the cycle continues flawlessly. These are mixed brass when I continue reloading tomorrow I will check to see if it is brass specific. Are there any other areas you would suggest I look? I will provide pictures if it helps. .. K

I've got the same problem, only with every round. New Square Deal B. Only about 500 rounds. Just started doing it at the end of loading 100.

I have about 2000 through mine. (guess) I'm going to start segregating the brass that jams to see if it's a brass problem. This bunch of brass is mixed headstamps.

mike the extraction grove on your 9mm cases, they shouldn't be more then .342----because Dillions' 9mm plate on my two machines are .344---some over pressured cases and some new factory cases are boarder line----they should be between .336 and .343 to run the plate smoothly---hope this helps.   

tee

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