Nelson Irrigation Australia

SR100 18° Big Gun®

The SR100 Big Gun with an 18 degree trajectory is the most popular pivot end gun used on center pivots today.

Nelson Big Gun® Sprinkler and R55 at the end of a center pivot


  • Flow: 50-150 gpm (11-34 m³/hr)
  • Pressure: 40-80 psi (2.75-5.5 bar)
  • Radius: 90-120 ft (28-37 m)


A Big Gun® sprinkler (operating through a complete rotation) on a quarter-section pivot can effectively irrigate up to 20 additional acres (8.1 ha). Considering the cost-effectiveness of putting this additional land into production, an end gun alternative shouldn’t be overlooked.

  • Up to 11 additional acres (4.5 ha)