RA 1964 head stamp 556 Ball M193

Is this ammo collectible?

I purchased it years ago for use in my Stoner 63 but sold the Stoner recently.

It is loaded with IMR type extruded powder, which would probably be IMR 4475 or CR 8136 both of which were used in 1964 according to looserounds.com.

The velocity is still +/- 3,250 fps from a 20 inch barrel which is pretty amazing considering its age.

Advice appreciated.