1. eyepiece
   lenses
2. power ring

The lenses are the crucial part.

1. one
   two
2. three

A scope has two lenses.

1. objective
   ocular
2. same size

The objective lens is the larger.

1. telescopes
   binoculars
2. microscopes

Rifle scopes work similar to telescopes.

1. where the shot will reach
   range of the shot
2. neither answer

The crosshair lets the shooter aim precisely at the target.

1. windage bell
   windage adjustment
2. reticule

The reticule is the same as the crosshair.

1. 50 meters
   100 yards
2. 200 yards

Most set the focus for a distance of 100 yards.

1. horizontal
   vertical
2. both settings

The windage adjustment fine-tunes the horizontal settings on the scope.

1. horizontal
   vertical
2. both settings

The elevation adjustment fine-tunes the vertical settings on the scope.

1. eyepiece
   power ring
2. tube

The main body of a rifle scope is the tube.

1. half inch
   three-quarter inch
2. one inch

Rifle scope tubes are usually one inch (30 millimeters) wide.

1. laser
   red dot
2. both answers

Common gun sights include: open, aperture, red dot and laser.

1. laser
   red dot
2. aperture

The aperture sight is similar to an open sight.

1. magnification setting
   size of the objective lens
2. both answers

The first two numbers mean the site's magnification ranges from 5 to 12 times; while the number 42 is the size of the objective lens in millimeters.

1. 7x
   8x
2. both answers

A scope of 7x or 8x will be sufficient for hunting from 100 yards (91 meters) away.

1. decrease
   increase
2. neither answer

For greater distances, you will need a higher size.

1. adequate eye relief
   shoulder pad
2. neither answer

If your rifle has a kick upon firing, you will need adequate eye relief.

1. so the two rings meet
   have a gap between them
2. depends on the scope size

Mounting rings should be tightened so as to have a gap between them.

1. gunsmith
   welder
2. both answers

A gunsmith is the craftsman equipped to mount a scope.

1. synthetic coating
   sunglass attachment
2. neither answer

Scope glare can be reduced by a special synthetic coating on the lenses.