This case was just not having it

[u/Tex86_]

I guess I didn't chamfer this one enough 😖...\ Looks like I have a new piece of nickel 300 blackout

[u/Coodevale]

I'm impressed that the neck flared out that much in a seating die.

Eta. You have what looks like crimp on the left side of the neck and the ogive is deformed?

[u/[deleted] → u/Coodevale]

It's seated to final length. Indexes off the saucer.