Here is the reason why sugar will not work:
Sugar is primary a glucose.
Glucose formula is C6H12O6
The mole of glucose is 12 * 6 + 1 * 12 + 16 * 6 = 180 grams, but
only 72 grams of which is carbon and the rest is plain water.
Gun power is a mechanical mixture which derives is explosive
properties from releasing energy stored in nitrogen bonds of the
You need pure carbon for that and in sugar carbon is bound to a
To answer your another question about empirical data; the answer is
no, I do not have any empirical data.
Empirical - means " as a result of practical observations ".
I do not find it productive to engage in experiments for which there
is no scientific under-pinnings.
However, I am always eager to learn, and if you are aware of some
mechanism which would make sugar an equal substitute for carbon, I
will gladly amend my remarks.