Attaching a rifle scope

Attaching the mounts

Daystate recommend the use of BKL 2-piece mounts. Loosely fix one mount to the dovetails on the front section of the breech block and the other on the rear. It is quite common when sighting in an airgun to need to tilt the scope forward by shimming the rear mount. A good material to use for this purpose is 35mm film negative and you should only need to use 2 pieces. Simply cut the negative to the same size as the mount and place it under the scope in the rearmost mount.

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Aligning the crosshair

You will need either the gun vice or 'Workmate' as to align the sight the rifle will need to be held firmly and level.

  • Place the gun vice or workmate on a firm and level surface.
  • Clamp the rifle, making sure that you do not damage the stock.
  • Place one spirit level across the flat part of the breech block and adjust the rifle until it is level.
  • Now look through the sight and without moving the rifle rotate the scope until the vertical cross hair aligns with the plumb line.
  • All screws should now be tightened. BKL mounts breech block securing screws should be tensioned just over 1/4 of a turn or 49 lb/in torque. Adjusting the zero

To zero the rifle:

  • Set up a large paper target, with a safe and suitable backstop at around 12yds
  • Mark a simple cross on the target and from about 12 yds (10 metres) . Fire a test shot
  • If the pellet is close to the 'mark' then note its position
  • If the shot was lower than 5 inches (130 mm) then you will probably run out of adjustment on the elevation turret and it will be necessary to pack up the back of the scope*
  • Using the turrets on your scope, adjust until the centre of the crosshair and the pellet hole coincide
  • Repeat stages 1-4 at your chosen zeroing distance

Note

*It is quite common when sighting in an airgun to need to tilt the scope forward by shimming the rear mount. A good material to use for this purpose is 35mm film negative and you should only need to use 2 pieces.

Simply cut the negative to the same size as the mount and place it under the scope in the rearmost mount.

When fitting BKL mounts to an Air Wolf or Air Ranger, it is nessasary to 'spread' the front mount in order to clear the full-length moderator. Remove a single clamping screw and replace into the hole in the other side. After fitting the screw should then be replaced in the clamping side to secure the mount. An alternative method is to loosten the moderator and carefully slide it forward while placing the mounts. This method is not recommended for Air Wolf MVT or Grand Prix, as the chronograph wireing runs inside this scroud.

Getting started