Re: Generous headspace/trim length....any problem with this??
Basically look at this as you loading for a wildcat. Nothing different, once the case is fireformed to the chamber dimensions your problem is over, as long as you do not return the case to its original virgin dimensions while sizing the case you will be fine.
With formed cases I see no reason to bother adjusting your barrels headspace measurement unless its keeping you up at night.
Fireform your brass, do not bump your shoulder back to much when sizing and have fun with her!!!
You are surely getting some case stretching on the initial firing but probably not enough to worry about, after that the shoulder will control any case stretching that would occur otherwise.
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