Muzzle brake

A muzzle brake for a gun tube, the muzzle brake comprising:

• a body having a top plate and a bottom plate, which extend from an inlet end having an inlet aperture to an outlet end having an outlet aperture, the body further having a first wall section, a second wall section and a third wall section, which extend from the top plate to the bottom;
• and
• a support hub defining an inlet end and an outlet end, wherein the support hub outlet end extends to/from the body inlet end;
• and
• the body and support hub define a longitudinal bore which extends through the body and the support hub between the support hub inlet end and the body outlet end, the longitudinal bore being centred on a longitudinal axis;
• the first wall section defines the body inlet aperture;
• and
• the second wall section extends from the first wall section along the longitudinal axis and extends to a first baffle which defines a bore aperture, a first chamber being defined between the body inlet aperture and the bore aperture;
• and
• the third wall section extends from the second wall section along the longitudinal axis and extends to a second baffle which defines the body outlet aperture, a second chamber being defined between the first baffle and the body outlet aperture;
• and
• the first wall section, top plate and bottom plate diverge away from the longitudinal axis in a section of the first chamber which extends from the hub outlet;
• and
• the second wall section, top plate and bottom plate converge towards the longitudinal axis and the first baffle, such that the second wall section, top plate, bottom plate and first baffle (220) define a first compression cone;
• and
• the third wall section, top plate and bottom plate converge towards the longitudinal axis and the second baffle such that the third wall section, top plate, bottom plate and second baffle define a second compression cone;
• and
• the body defines a first pair of outlet ports for the first chamber and a second pair of outlet ports for the second chamber, the outlet ports of the first pair facing each other on opposite sides of the longitudinal axis, and the outlet ports of the second pair facing each other on opposite sides of the longitudinal axis;
• and
• each of the outlet ports for the first and second chambers having a divergent outlet nozzle defining their periphery.