Tracing Casablanca's 16-inch shells through wartime logistics

Were the 16-inch shells used at the naval battle of Casablanca from the same grouping as ammunition supplied to Washington and South Dakota around Guadalcanal?

Probably from the same order run, although the evidence does not confirm that they came from the same production batch.

The connection is probable rather than certain. Supply timing and one specialist logistics history point toward the same order run, though the shells did not necessarily come from the same production batch. Published naval histories rarely preserve ammunition accounts at this level of detail. The available evidence supports the order-run link while leaving the exact batch unresolved.