A bill to amend title 18 of the United States Code to impose criminal penalties on certain persons who fire firearms or throw objects at certain railroad trains, engines, motor units, or cars.

Makes it a Federal crime to discharge a firearm or in any manner propel any object at or upon any railroad car engine used by any common carrier engaged in interstate or foreign commerce.

Expands the Federal prohibition against entering a train in any Territory, District, or other place within exclusive Federal jurisdiction with an intent to commit robbery, murder, or other violent crime to encompass entry upon any railroad car used by any common carrier engaged in interstate or foreign commerce.