Perforated propellant and method of manufacturing same

A method for manufacturing perforated propellant grains, comprising the steps of:

• extruding a propellant lacquer through an extrusion die assembly to form one or more propellant lacquer strands, said extrusion die assembly having a plurality of holes, each of said holes having at least one pin tip positioned therein, said propellant lacquer comprising:
• (a) from about 15 to about 70 wt % of an organic solvent;
• (b) from about 0.1 to about 2.5 wt % of a stabilizer;
• (c) optionally, from about 0 % to about 40 wt % of an energetic plasticizer;
• (d) optionally, from about 0 to about 10 wt % of a nonenergetic plasticizer;
• (e) optionally, from about 0 to about 10 wt % water;
• (f) optionally, from about 0 to about 15 wt % of additional additives;
• balance being nitrocellulose;
• all weight percents based on the total weight of said composition, and wherein said lacquer has an extrusion viscosity of less than 10 million centipoise;
• cutting said propellant lacquer strand to a desired dimension to form perforated propellant grains;
• suspending said perforated propellant grains in a water based liquor;
• removing said organic solvent and water from said perforated propellant grains;
• and
• hardening said perforated propellant grains.