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Recently, I noticed on a few of my 44 reloads that had a heavy crimp on the bullet before firing, the case is still slightly rolled in at the top to the point that a fresh bullet will not fit into the opening

The mouth must have expanded to the full .430 when the bullet passed through, but there was enough residual stress in the crimp to re-curl them after the pressure dies down? Anyone else notice this in revolvers?

I have noticed that on some of my 357 mag loads with moderate to heavy crimps...some of my brass is not as noticeable as others. I just ignore it and load them as normal. When they crack, I just chunk them into the scrap brass bucket
Unless it was a special hard to get caliber brass, then I may do something else?

Just me.

Don2

Don2 wrote:I have noticed that on some of my 357 mag loads with moderate to heavy crimps...

Great. Good to know it's normal.

I bet they were the ones holding the 180gr. rounds hauling it at around 1775 FPS so they didn't spend a lot of time deforming the brass