9mm identification - what are they?

[G10k]

I have several unmarked boxes of ammunition. I'm guessing its from the late 90s. There are two different types of rounds, amd I'm tying to ID them.

Exibit a.
F C brass marking, projectile looks similar to Federal HST


Exibit b.
R - P brass marking, feels much hotter, and has excessive muzzle flash.

 

[Greenbug]

The FC head stamp round looks like a Federal Classic "Blue Box" JHP factory round.

The R-P head stamp looks like a reload of some type. Different colored primer and marks on the case head from previously being fired.

 

[Reno]

Federal stuff looks like old hydroshok.

Remington stuff looks like their bulk box stuff that or it’s the HST stuff.

 

[KKG]

From the Corrosion, they have been poorly stored.

 

[DizzyJ]

I think if the federal is hydra shock there will be a post sticking out down inside the hollow point cavity. Can't tell from the picture.