With the pandemic it is darn hard to find cartridge cases and/or ammo. In a normal time I would go to your friendly guns shows and look for what I need.
I am going to chamber my project barrel very soon which means I have to cut the rim the correct depth plus proper headspace. The caliber is 7x57 Rimmed. When I chamber I for a rimmed cartridge I like to have a few different case makers brass so I can compare the rim thickness variation.

So the favor I ask is if you have any 7x57 Rimmed ammo and a micrometer could you measure a couple or each variation you have and give that data to me? Please tell me the manufacture or headstamp and then the thickness of the rims. either inches or metric are find.

Thanks in advance