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Thanks gents,
Since I use a universal decapper and was also experimenting on the South African Berdan primed cases, I removed the decapping pin from the FL sizing die. I had been running the expander quite high but in one last try after my previous experience last night ruining the four cases, I prepped another new Winchester case in the same fashion (inlcuding the inside and outside lube) and screwed the expander down much further. I ran the case up and could tell by the resistance encountered that I was likely in trouble so I pulled the case out and I'd crumpled the neck again but short of separating it.
I'm now wondering if my Imperial Sizing lube is adequate for the interior neck expansion as I run the case mouth approximately 1/4-3/8 from the top of the expander and the cases go no further. From that point I either crunch and wrinkle the cases or I crunch and separate the neck portion from the shoulder. A distant posibility is that there is something wrong with the die or expander dimensions, but I'm still focused on a failing in my settings or lube. I think I'll try again with a different lube and reset the expander low enough that it would be punching the primers out if I had the decapping pin in place. Might just have to sacrifice a few additional Lake City or Winchester cases and actually punch out the primers. Hate to risk good brass given my "Hall of Shame" collection of crunched and separated cases but will give it another go.
By the way, Redding contacted me by email today to indicate that:
"We don't have any instructions for trim dies. Sorry. They are normally adjusted to make firm contact with the shellholder. If a lot of case sticks above the top of the die, cut it off with a 32 tpi hacksaw blade and file with a fine cut file. If only a little of the case sticks out, just use the file." Not much info there but better than what came with the die....
Thanks again,
Brad
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