Choosing the right Nelson Big Gun sprinkler starts with four questions: Do you need full-circle or part-circle coverage? What connection and series fit your irrigation system? Which trajectory angle suits your field conditions? And which nozzle matches your required flow?

This guide explains the main Nelson Big Gun options so you can narrow the choices before checking the exact pressure, flow, and coverage requirements for your installation.

Start with the coverage pattern

  • F-series: Full-circle sprinklers rotate through a complete 360-degree pattern, making them a fit for open areas where water can be distributed in every direction.
  • SR-series: Part-circle sprinklers let you adjust the spray pattern, which can help keep water away from roads, property lines, buildings, or other areas outside the field.
  • SRNV100E: A part-circle option with solenoid control for systems that need automated operation.

Choose the Nelson Big Gun series

Series Best starting point Connection or control
F75 / SR75 Medium-range irrigation applications 2-inch connection
F100 / SR100 Higher-volume coverage for larger fields 2-inch connection
F150 / SR150 High-capacity traveler and field systems Flanged connection
F200 / SR200 Maximum-output applications and the largest irrigation areas Flanged connection
SRNV100E Automated part-circle irrigation Solenoid control

Use the series as a starting point, then confirm that the connection, operating pressure, available flow, and required throw distance match your system.

Choose the trajectory angle

Nelson Big Gun models are available with several trajectory angles, including 18°, 21°, 24°, and 27°, depending on the model. A lower trajectory can be useful where wind drift is a concern. A higher trajectory can help maximize throw distance when the site and wind conditions allow it.

Do not choose an angle by itself. Compare the angle with the sprinkler model, nozzle size, operating pressure, and the coverage pattern your field actually needs.

Match the nozzle to your system

The nozzle controls how the sprinkler uses available water. A larger nozzle is not automatically better, and the best choice depends on the sprinkler, pressure, flow available at the gun, and the coverage target.

Nelson taper-bore nozzles and nozzle rings are available separately. Before ordering, verify the sprinkler series and nozzle style, then use the manufacturer performance information for the selected model and pressure. If you are unsure, contact Discount Irrigation for help matching a nozzle to your setup.

Check the connection and application

Confirm whether your system needs a 2-inch connection or a flanged connection before choosing a sprinkler. Also decide whether you need full-circle coverage, adjustable part-circle coverage, or solenoid control. These details prevent an expensive mismatch when replacing a gun or adding one to an existing irrigation system.

Shop Nelson Big Gun sprinklers and parts

Browse the Nelson Big Gun sprinklers, nozzles, carts, and parts collection to compare available models. Product pages include the model and connection details available for each listing.

Need help narrowing it down? Send us your pipe or inlet connection, available pressure and flow, desired coverage pattern, and application. We can help you identify the right Nelson Big Gun family and nozzle starting point.