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9mm cases wont chamber

I have a 550RL. recently i have been having an issue where the bullet is not seating straight into the case and is creating a more than normal bulge on one side of the case, therefore not allowing the cartridge to drop into the chamber. I'm failing about 30-40% of the rounds that i am loading. Very Frustrating! Any help would be greatly appreciated.

For best possible service, please phone us when you can be in front of the machine. To start, reset all of your dies, and always have a fired case in station 1 when adjusting the other die positions. Always tighten the die lock rings with a case up in that die, including the powder measure. This ensures the die is centered in the toolhead.

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