"... thinking of the response...": to borrow a line from Monty Python, pull the other one!
Yes, a dense packing, high energy double base ball can best a full case of single base stick, and I doubt there'd be enough air space left to make ignition inconsistent. But to compare apples to apples, there's likely a slightly "slower" ball which could fill the case and deliver a bit more speed. Or maybe there isn't: It depends on how progressive is the burn. Under test, BL-C2 can do wonders in some cases, eg. the .25-35 WCF (but now surpassed in it by CFE-223); and then there's Li'l Gun in the Hornet.
