Rules and Classes

The rules below are for competing at sanctioned United States Air Rifle Benchrest matches.

The USARB has 5 sanctioned classes. Two of these classes are Light Varmint and Heavy Varmint as outlined in the World Rimfire and Air Rifle Benchrest Federation rule book. The rulebook is available here.

In addition, the USARB includes 3 USA Classes that are described below.

USA Open Class:

  • .177, .20 and .22 calibers are allowed.
  • Up to a maximum of 35 foot-pounds of energy.
  • Up to a maximum of 25 pounds total weight.
  • Fore end of stock not to exceed 3 inches in width.
  • Rifles using electrically actuated or powered components, or computer processors and applications are not permitted.
  • Wind flags or anemometers sensing and transmitting data to a computer device or display are not allowed.
  • Front rests using electrically actuated or powered components are not permitted.
  • One piece rests are allowed.
  • Scopes transmitting or receiving data from a computer device are not permitted.
  • Scopes may utilize illumination.
  • Tethered tanks are not allowed.
  • International scoring rules will apply.
  • Target distance will be 25 meters or 50 yards, at the discretion of the match director.

USA Unlimited Class:

  • .177, .20 and .22 calibers are allowed.
  • Any power level is allowed.
  • Any weight rifle is allowed.
  • .25 or larger calibers are allowed to compete for score at the discretion of the match director; given non compliance with WRABF scoring procedures, scores will not be recognized by USARB.
  • Rifles using electrically actuated or powered components, or computer processors and applications are allowed; these components need not be integral to the rifle.
  • Wind flags or anemometers sensing and transmitting data to a computer device or display are allowed.
  • Front rests using electrically actuated or powered components are allowed.
  • One piece rests are allowed.
  • Scopes transmitting or receiving data from a computer device are allowed.
  • Scopes may utilize illumination.
  • Tethered tanks are not allowed.
  • International scoring rules will apply.
  • Target distance will be 25 meters or 50 yards, at the discretion of the match director.

USA Spring Piston Class:

  • Power plants: Spring or Piston. Rifle must be cocked for each shot. When the trigger is pulled, a piston or spring (which is the source of power) is released, thereby compressing a mass of air to launch a pellet. No rifles in this class may store compressed air that is used to fire the pellet.
  • Power restrictions: Any FPE may be used.
  • Rests: Two piece rests are allowed as referenced in Section B8.1-B11 of 2014 WRABF. Exceptions: Bipod use is allowed.
  • Calibers: .177, .20, .22
  • Scoring: World Rules apply.
  • Distance: 25 meters or 50 yards, at the discretion of the match director.
  • Match Times: Shall be 20 minutes, or as referenced in WRABF rules Section D3.
  • Maximum Rifle Weight: No weight limit.
  • Stock: 3″ maximum forend width. Rules as specified in Appendix F of the WRABF.

Applicable Conditions incorporated by USARB Board of Directors on 1/2016:

  • That sanctioning and inclusion of a Spring Piston classification is on a 12-month trial basis to test its design and gauge shooter participation.
  • That sanctioning thereafter is based on repetitive and visible participation by shooters during the trial period, sufficient to warrant continuance of a national class.
  • That the Board’s judgment will be influenced to large degree by club and regional competition scores being posted to USARB Scoreline page.