dupe, delete

[BFMIN]

I recently annealed a batch of bottleneck R-P .303 British cases I'd been gifted with. They're listed as "once fired".
As part of brass prep I annealed them using my normal tools techniques & times.
The cases were in a deep well socket spun continuously by an electric screwdriver.
I heated over a low propane flame for 7 seconds, & verified temps with a Templistick 450℉ .
I've used this for years with never a problem.
The chase necks/mouths are so soft the case chamfering / deburring cutter is deforming the case mouths!
Am I over reacting or did I just wreck a batch of cases? I have never had this issue before!

 

[Growler215]

Lube and then run them through your FL sizing die again. Can repeat a couple of times for each case. This should "work harden" them a bit. . .or it may crush the necks if they're really too soft. Either way, you'll know.

Probably OK, though.