Improved barrel for paintball gun

A gun barrel having a length comprising:

• a breech end;
• a muzzle end having a first cross-sectional area;
• and
• a plurality of apertures defining a pair of parallel helixes in said gun barrel;
• wherein said helixes extend along said gun barrel proximately from said muzzle end toward said breech end a first longitudinal distance less than the length of said gun barrel;
• said helixes include a helical axis concentric with the longitudinal axis of said gun barrel;
• said apertures are spaced a second longitudinal distance from one another;
• each aperture is further spaced a first arcuate distance from its adjacent around the circumference of said gun barrel;
• and
• a sum total of the cross-sectional areas of all the apertures in said gun barrel exceeds said first cross-sectional area.

In a paintball gun having a breech and a barrel with a muzzle end and a breech end, the improvement comprising:

• said gun barrel having a length and a first cross-sectional area at said muzzle end;
• a plurality of apertures defined in said gun barrel, said apertures extending along said gun barrel proximately from said muzzle end toward said breech end a first longitudinal distance less than the length of said gun barrel, and further extending around at least a portion of a circumference of said gun barrel;
• wherein a sum total of cross-sectional areas of all the apertures in said gun barrel exceeds said first cross-sectional area;
• said apertures expel air in said gun barrel from in front of a projectile and expel gas from the rear of the projectile to reduce turbulence and improve the accuracy and distance of the projectile when shot from said breech end outward through said muzzle end;
• and
• a choke in said breech adjacent the breech end of said gun barrel, said choke having an inward chamfer on an end of the choke opposite said gun barrel.