It was thicker - I chamfered the mouth. It chambers - I ran up one without powder to see if the Armisport would have an issue.
Sorry I should have measured, I was in a hurry. This was a VERY rough test run to see if it was worth the time to try some more. For my next attempts I will measure everything and try to do a youtube or at least pictures.
So far my tentative plan is to anneal, cut, trim to length, form in a regular spencer resizer die, then reform in the Lyman armisport die. I'm sure I'll modify the steps after a few tries.
My Lord - if this works and shoots good enough, the effort will be worth it!!
More to follow....