How to use adjustable objective rifle scopes<br>Be sure that your scope is mounted properly. Sighting-in can have been done preliminarily, but additional sighting-in will be desirable after following these steps : Know your rifle. There are actually two optical systems in a rifle scope.
Adjustable rifle scopes need sighting in multiple times.
The snippet only refers to two sightings in.
( z1 need :ARG1 ( z2 sight :ARG1 ( z3 scope :mod ( z4 rifle ) :ARG1-of ( z5 adjust :ARG1-of ( z6 possible ) ) ) :frequency ( z7 multiple ) ) )