CCI #150 versus CCI #300 - What is the difference?

[Elric]

Oops, 300 is Federal, I got a older, non-huge box. It is NOT CCI...

Boxer primer reference chart, LASC handloaders reference page

www.lasc.us

CCI #150 is standard Large Pistol
Federal #300 is standard Large Pistol.

And now back to the regularly scheduled broadcast...