You don't mention what competition and at what level.

Go on, give us a hint.

If NSRA then its mentioned in the 2009 rule change.


If NRA then:
The actual text of the relevant rules from the Bisley Bible is set out below. The provisions can be summarised as follows:

  • A prescription corrective lens is allowed, either worn by the shooter (in everyday glasses or special shooting spectacles) or mounted in/on the rearsight.
  • A dioptre can be fitted to the rearsight.
  • An Eagle Eye is allowed in the foresight but NOT in conjunction with magnification in the rearsight; however, it can be used in conjunction with a prescription lens.


Why not get an online version of the rules for the comp you are entering and have a look for yourself?