Quote Originally Posted by Guns4545 View Post
Are you using the Lee auto drum by chance. If I use it it over flares the case. Now if I don't use it I can set the flare as needed. Seems like the tension from the spring in the auto drum over flares it. Never has issues like this using the auto drum in any other pistol cartridges. Any ideas?

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I'm loading mine on my Dillon 550B so I don't have the Autodrum. Does it have any kind of height adjustment to allow it not to push so deep in the neck?