Noun1.smokeless powder- an explosive (trade name Ballistite) that burns with relatively little smoke; contains pyrocellulose and is used as a propellant Ballistite explosive- a chemical substance that undergoes a rapid chemical change (with the production of gas) on being heated or struck ...
The principle of this weapon—the reduction of muzzle impulse to get usable automatic fire within the actual ranges of combat—was probably the most important advance in small arms since the invention of smokeless powder." Il principio di quest'arma - la riduzione del rinculo per poter impie...