That was a different case, if I remember correctly. The one I sent the Fenderbird in was an unfitted Ep-T-bird case. The Fenderbird fit in it because it's shorter than a T-bird, mostly because of the shorter headstock.
For comparison, see the pic below.
Left to right: Epi T-bird case, Victory case, '74 P-bass case, G&L molded case, Epi case for the NR, two Ripper cases. It's 4 inches longer than any of the other ones. I believe it was intended as an Explorer bass case. The body cavity was square and even the NR slid around a bit, with several inches of open space on all sides.