Bushnell PROFESSIONAL BORE SIGHTER 74-3333 Instruction Manual

Bushnell PROFESSIONAL BORE SIGHTER 74-3333 Instruction Manual

Professional boresighter

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Professional
BORE SIGHTER
The Bushnell Professional Boresighter is an essential tool for quickly adjusting scope
or iron sights to align with the rifle or handgun barrel. Correct use of your Boresighter
will put sighting-in test shots "on the paper", requiring only minor expenditure of time
and ammunition by test firing to achieve pin-point zero at a given distance. Because of
the many variables involved in both ammunition and the firearm itself, final "sighting
in" must be done by actual firing.
After "sighting in" by firing, reinstall the Boresighter in the muzzle of your gun and
note the position of your scope reticle on the grid of the Boresighter. Make a record
of this position for later use in checking the sighting in the field. Be sure to note the
ammunition that was used.
On the hunt, the Boresighter is an invaluable aid for making sure that your rifle remains
accurately sighted when test shots would frighten the game for miles around! In the
shop it is ideal for checking stock bedding for sensitivity to barrel pressure.
SPECIFICATIONS
Graduated Grid Sighting Reticle-each
graduation is equivalent to 4 inches at
100 yards.
Pro Boresighter Kit 743333-1LIM.indd 1
Model # 743333
Diameter of Front Lens
Length of Body
Weight
Instruction
Manual
1-1/2 inches
4-7/8 inches
6-1/2 ounces
4/28/2008 2:56:51 PM

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Summary of Contents for Bushnell PROFESSIONAL BORE SIGHTER 74-3333

  • Page 1 BORE SIGHTER Model # 743333 The Bushnell Professional Boresighter is an essential tool for quickly adjusting scope or iron sights to align with the rifle or handgun barrel. Correct use of your Boresighter will put sighting-in test shots “on the paper”, requiring only minor expenditure of time and ammunition by test firing to achieve pin-point zero at a given distance.
  • Page 2 Model# 743333 15 Arbor Deluxe Kit Model# 744001 Optional Accessory Arbors (available through your Bushnell dealer): Note that the unique expandable arbors included with the Professional Boresighter Kit provide exceptional flexibility that is ideal for most owners of multiple firearms.
  • Page 3 HOW TO INSERT THE EXPANDABLE ARBOR INTO THE GUN BARREL Place the gun with mounted scope into a suitable support. Select the proper arbor and make sure the expandable tips are completely closed by turning the arbor’s locking nut (“A” Fig. 1,2) counter-clockwise until the tips contract. Insert the small end of the arbor into the Boresighter mount with the flat area down, so that the end of the clamp screw (“B”...
  • Page 4 HOW TO BORE SIGHT A SCOPE-MOUNTED RIFLE OR HANDGUN Scope/Rifle Combination Once you have secured the Boresighter, place the rifle on a suitable support. Remove the adjustment caps from your riflescope. Then sight through the riflescope and align the reticle with the crosshairs of the graduated grid reticle in the Boresighter by using the riflescope’s elevation and windage adjustments.

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