Expander mandrel consistency?

[mikecr]

AMP offers a seating pressure setup. It's speed control with seating is good for the measure.

AMP Press | Bullet seating press

Delivers precision Force over Distance measurements when seating bullets

www.ampannealing.com

RSI offered similar, called LoadForce, but without the motor.

I prefer to watch forces with an instrumented Sinclair mandrel die.
No motor or graphing, but I don't need that to see what's going on.
It's old school for sure.

 

[Webster]

If you turn necks i see no reason to use an expanding mandrel.

Isn't the bullet a mandrel?

 

[mikecr]

Isn't the bullet a mandrel?

People like to use bullets for that, but they're terrible mandrels.
They're soft, with an abrupt base-bearing junction, you're pushing against a curved nose, bearing depth may be limited, and it's harder to undo & repeat.