Annealing

[Airgator0470]

Ach! Junkwaffen.

Anneal what for what and why?

I've mostly annealed cases to fireform them to another caliber.. specifically from .303 British to .410 Enfield musket.

Consistent neck tension for brass with repeated firings as well as prolonging case life (avoiding split necks as you mentioned) are the reasons why. Cases with repeated sizing, even just neck sizing, can benefit from annealing.

It's not something I've had todo as my .223 and .308 brass supply remains unlimited at the moment.