If you are using a Dillon press, and loading Colt Short, you should use a 9mm powder funnel, because the 38spl powder funnel is too long. You might be OK using the 38spl powder funnel with Colt Long, but check.
There's a guy I shoot with that cuts his to 38 Super length and uses a 38 Spl powder funnel.
I just use Starline Colt Short brass.