Anneal before or after necking 7.62 down to 6.5mm?

rmantoo · May 24, 2019

Pretty much exactly what the title says: Should I anneal once fired 7.62x39 before, or after sizing down to 6.5 grendel?

For that matter, would anyone suggest I anneal before AND after for some reason?

rmantoo · May 24, 2019

NVM... looks like annealing before resizing is a no go: these 5 were annealed, then reformed... that's 5 out of 20.

The next 200+ were reformed, then annealed after... worked fine.

dee · May 25, 2019

Have to go in smaller increments if you attempt to do it after annealing.

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rmantoo · May 25, 2019

dee said:
Have to go in smaller increments if you attempt to do it after annealing.

Sent from my SM-G965U using Tapatalk

Is there an advantage to annealing them first (these are once fired), then necking them down?

dee · May 25, 2019

If you are making major changes in size it helps keep the brass from fatiguing and I that case it's ideal to do before and after.

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Anneal before or after necking 7.62 down to 6.5mm?

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