How to Rig a Softball Bat

Softball bats can be rigged by shaving the barrel and adding extra weight through a process known as end loading. Independent studies from Washington State University and Brown University have found that balls hit by rigged bats travel farther and faster than hits from non-doctored bats. This advantage--though illegal in most organized softball leagues--can be used in rec leagues and exhibition games to increase a batter's power.

Things You'll Need

  • Screwdriver or pliers
  • Sand paper
  • Polyurethane compound
  • Urethane epoxy
  • Paintbrush
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Instructions

    • 1

      Place your bat between your legs with the barrel facing up. Grip firmly with your knees.

    • 2

      Remove the end cap of your softball bat. You may need to use pliers or a screwdriver to pull out the cap, as these are firmly affixed at the factory.

    • 3

      Sand the inside of the barrel to thin out the inside wall of the bat. You can sand it by hand, which will give you better control over the amount of material being removed, or use an electric sander. Do not remove too much as this will weaken the structure of the bat.

    • 4

      Pour polyurethane plastic compound into the open end of the end cap. Alternatively, you can use any material that is hard and heavy, such as plaster. Let the cap dry completely before continuing.

    • 5

      Paint a thin layer of epoxy glue around the outside of the end cap.

    • 6

      Place the end cap back into the end of the bat. If the fit is too loose, add a thicker layer of glue until the cap fits snugly into place. Let dry.

    • 7

      Weigh the bat and compare the new weight to the old weight. The two weights should be similar, but the weight distribution is now different.