Ben Wright sent us this one late last year. This rule affects all
ISSF disciplies and comes into force on 1st Jan 2004).

8.4.9.5 - Side blinders attached to hat or cap are not permitted.
Side blinders attached to shooting glasses or to a head band not
exceeding 40mm deep are permitted. These blinders must not extend
further forward than to a line from the centre of the forehead.

8.4.9.6 - A piece to cover the non aiming eye not larger than 30mm
wide is permitted.