I have tentatively identified both of these cartridges as 7.92x57mm from China. Please see the headstamps.
Although it isn’t clear in the photo, the primer has been completely colored with red sealant or paint. Almost looks like it was applied by hand.
No primer sealant.
The order of the above cartridge profiles correspond to the above headstamps. Cartridge #1 has red primer sealant and green sealant ring around the bullet at the case neck. Cartridge #2 has no primer sealant and a red sealant ring around the bullet at the case neck.
Are my IDs correct that these are Chinese rounds?
Does anybody know if the sealant colors on the primers or case necks have any significance?
Thanks for any information.