Crimping

[zippy13]

During seating... well, sort of
With fast powders and light target loads, I give my ,45ACPs just enough to remove the flare. I get better accuracy and case tension is sufficient to prevent recoil bullet pull. The same thing applies to my mid-range revolver loads. For service and magnum revolver loads, I roll crimp (while seating) at the cannelure. My limited case failures occur at the mouth, so why stress the material in that area with unnecessary crimping?

[HisSoldier]

Quote;
"Die #1 of the two die set sizes the case mouth and flares at the same time. The case is sized and flared going up, then pulled back down thru the sizer which, of course, would have to remove flare--unless the flare is so excessive that some will spring back after it's pulled through the sizer. Such excessive flaring of the case amounted to a case torture test. I believe that die has been obsolute for a while now.

The second die, of the 2 die set, would seat and crimp as we've been discussing. I imagine more recent combo seat/crimp dies are better designed than those used in the OLD two die sets going back a few decades, since a number of posters have been using such dies with success and haven't been experiencing problems with scraping the bullet while the dies attempts to crimp and seat at the same time."

This has me wondering. I recently bought a 2 die set for .30 Luger that hasn't made it here yet, does it work the way?

[WESHOOT2]

Trouble-shooting friend w/new L-N-L setup in 45 ACP.

Problem?
Insufficient neck tension.
Too much flare.
Seat/crimp in same step, causing dimpling.

NOT yet resolved; his new Berry's slip into the case with a hard look.....

(I have learned again why I recommend Dillon progressive presses).