Frankford Arsenal 1960 Match 30 Cal corrosive?

[International Harvester]

Originally I thought this Ammo had corrosive primers. Now I'm not so sure... Any experts?

 

[green]

The last corrosive 30-06 Match ammo was made in 1956.

 

[International Harvester]

I've read that too, but then I find conflicting reports. Does M72 refer to the primer?

 

[green]

US Army ammo manual June 1961 TM 9-1305-200 round designated "Cartridge, Cal 30: Match M72"
Ctg model not primer