Need help identifying head stamps

[SeaBee2020]

2 of these look like 7.62x39. I have no idea but must identify before use and if I should use them or not. I read some bad reviews on the T Z 80. I also need to know the caliber and what riffle is needed for each please...in detail as I'm learning.. I have 223, 5.56, 308, AR 10 ( 308) , 7.62x39 in AR Platform and others.... 6.5 Creedmore, 338 Lapua, building 300 Blk Out, and so on...

Thankyou in advance for all help and knowledge.

 

[Odd Job]

My advice is if you are learning and you have multiple rifles in multiple calibers, start with properly labelled factory ammunition first.
You can then go back to those loose rounds in the future and decide whether it is worth shooting them (presumably you don't know the history of the rounds and they could be reloads).
Also..for headstamps, the cartridge collector forums are great, see my signature for the link.

 

[SeaBee2020]

Thankyou Very much. I have ammunition from multiple people and all was not properly labeled. Unfortunately. I am labeling and categorizing my ammunition properly as I find out exactly what it is. I have several calibers that are 308 but different. I have been guided and properly warned about the hazards of mislabeling, which could potentially lead to death. I am taking great care to take heed to those warnings and teachings. That is one reason that I have asked to join , than asking the needed questions to remain a responsible and proactive gun owner and user...

With everyone's knowledge and encouragement I'll continue to grow and become more proficient.
Thankyou, I'm very greatful.

 

[berettaprofessor]

https://afte.org/resources/headstamp-guide

You're welcome

 

[Robert]

Pics of the rounds from the side showing the complete round would help too.