Hoping someone with more experience can help me. Been reloading off/on for 8yrs, but no expert, and first time with this case.
Once-fired 25-20 brass, which was formed by an online vendor from 32-20 and twice annealed. Lube neck interior with graphite, externally with imperial wax, pass it up into redding FL die (T7 press) with significant resistance but it goes, then on the downstroke the neck snaps off. Twice sent the die to redding to remove the neck brass, explaining what happened and including a few more cases which they returned sized.
Measured OD of the virgin (formed) is 0.270. The once-fired (Marlin 27S) measures 0.280. Unfortunately i lost track of the few cases redding returned so can’t measure those.
Begs the question, wtf am i doing wrong? What am i not seeing?
Maybe should sacrifice a couple with the expander taken out, see what happens?
