SAC - to mandrel or not?

[Maurygold]

Are people running the mandrel from SAC in their dies? If so what is the best way to determine size?

I currently only run custom Whidden bushing dies and no mandrel (I own mandrels for new brass) without any issues but since the SAC is one step I'm more open to the idea of running a mandrel but want to know what others are doing with their SAC dies in terms of mandrel vs no mandrel.

This is about SAC mandrels only. I'm running it in 7 PRC

 

[Simonsza1]

My personal experience for what it’s worth to you. I called sac and told them brass,bullet and caliber. He advised the size for bushing mandrel etc. used it once it arrived and it was absolutely perfect. So maybe just try to give there customer service a call and see what they say.

 

[simonp]

^^^ What he said, did that for two of their dies that I use.