This comment (by DougGuy) posted today, in a taper crimp instead of roll crimp thread.
Doug, forgive me for copying your post to a new thread...but I have a question and I didn't want to derail the other discussion.
First, I have never trimmed any pistol brass, never found the need for it...til the last batch of ammo I was reloading.
It was 41 Mag for revolver (as well as Marlin 1894).
using the Saeco 411 ( 230gr SWC)
If I'm using brass that is MAX length (per SAMMI) or less, I am able to crimp into the crimp groove (I'm using the Lee collet FCD) and achieve a COAL that works well in the Rifle and is right at MAX length to fit in the cylinder of my Mod 57.
I had accumulated a bag of used brass all with "W-W Super" headstamp, but it came from different sources. Some of them were .010 to .015 over MAX length...and they were troublesome to crimp, as the case mouth extended beyond the crimp groove and onto the driving band. After I figured this out, I pulled the few long ones that I loaded, then proceeded to sort out all the long ones in that bag, I found about 100 of them.
I figured I'd save those for "if or when" I ever attempt to make some 41 Mag shotshell ammo. But I also thought about trimming them...til I read Dougguy's comment.
Anyone ever seen 'stretched' straight wall pistol brass?