I noticed that, FWIW, Quality Cartridge is planning to run both .240 Hawk and 6mm-06 cases sometime this year. YMMV, of course.
perhaps they'd work a little better than .25-06 cases?
I also learned that Midway has a single box of .22 Neidner brass on hand. Also FWIW, YMMV, just in case you have a .22 Neidner
There's more to consider than
dimensions, of course. The continuum of hardnesses as shown in the lower left drawing on page 17 of my cartridge book is at least as important as the inches. Quality Cartridge's stuff may be good. I just don't know.
And of course I hafta wonder why 6mm-06 brass might be preferable to .25-06 brass.
That's
Niedner, by the away, not "Neidner" (if it's safe to assume that the old guy knew how to spell his own name).
And it's NEED-ner, not NIGHd-ner.