All 7.62 projectiles mike at .307, copper weighs 7.8g and brass 10.3g. (.338 = 16.2g)
Also, not .40, but 45acp on both. 11.6g and 19.4g
Head stamp on 5.56mm are AP16/5.56. Not sure if factory or reload coming from someone else. Hard solid crimp around the primer.
Two of the three - 9mm have Starline brass, but the last one is a factory dummy with FSM head stamp.
Always loved the solid copper and brass projectiles.