Ultrapowerful chemical propellant for guns

I'm building a moderately hard scifi future setting that focuses on space and land warfare and I'm trying to decide what would be the most realistic from an engineering standpoint of artillery tech to add.

I've ruled out lasers, railguns, and coilguns as being ubiquitous weapons.

However if the setting is gonna mainly stick to chemical propellants, is there any real physical possibility to create chemical propellants, hundreds, if not thousands of times more powerful than what we have today (and much higher barrel pressures too)? I'm excluding antimatter as a propellant.

posted almost 6 years ago

A.boj‭

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