Gary Reeder
you need to go down in a couple of steps.
Tuesday, October 15, 2019, 12:50

405 down to 375, then down to 358 or 338 at the lowest, then down to 308. The 357 Mag die won't work as the 405 case won't go into the 357 die. Neck sizing then fireforming is fine, but you still have to go down to .308 before you can fireform, so going in steps is the only way you can do it.