resizing

[John Sabato]

The SAAMI specs are a little more forgiving than the Eley drawing. The case length on the SAAMI spec is a max of .850 inches tolerance minus .02 inches, while the Eley drawing shows a range of .840 to .850. After the first firing and resizing, it is likely necessary to trim the cartridge case back to this case length.

I am late to this game as far as suggestions, but agree that the problem may have been the case length exceeded the chamber and the overly long neck ran into the rifling preventing full closure of the toggle train...

If you get the chance to rework some of the cases, trim them back to the same size as the ones that worked and see if they will then function.