One reason why after following the mixing instructions I let it dry for 5 days was because the guidance for the three Home Made powders in the manual call to "Cook the Powder" over a low flame - and to have water available to put out a fire should it catch fire. Given the -35 temps; I did not want to cook it over the Kitchen Range. The materials ARE NOT EXPLOSIVE for this mixture. They burn rapidly and create large volumes of gas to propel the bullet.
The reference particularly warns against the use of Chlorates for powder production. From the manual:
THE USE OF CHLORATES, AND PARTICULARILY POTASSIUM CHLORATE, IN PROPELLANT POWDERS IS SPECIFICALLY BAD. Chlorates have been tried, in every combination, particularly with sugar, and are always to be regarded as DETONATING EXPLOSIVES. Chlorate Ex- plosives are generally known for their brisance. They are known for their sensi- tiveness to friction. Chlorates are essential and indispensable in primers: but have no place in propellants whatever.
If my five test rounds perform poorly; I'll look into "Cooking" the mixture as it is possible I may be missing a factor affecting the chemical conversion for the Powder manufacturing. I am not a chemist; so anyone who is and has insight please provide comment.