Bushnell LASER 20-4124 User Manual
Page 9
5
BORE SIghTINg
Bore sighting is a preliminary procedure to achieve proper alignment of the scope with the
rifle bore. It is best done using a Bushnell Bore Sighter. If a bore sighter is not available,
it can be done as follows: Remove the bolt and sight through the gun barrel at a 00 yard
target. Then sight through the scope and bring the crosshairs to the same point on the target.
SIghTINg IN RIFLE AT ThE RANgE
- Remove the elevation cap. If the standard elevation turret is not installed, remove the BDC turret and
install it. This is done by using a coin to unscrew the retaining screw in the center of the turret. Grasp
knurl at top of the Turret and lift upward, disengaging turret from the elevation adjustment pin. Reverse
to install a new turret.
- Sight-in the rifle, firing a group of at least three shots at 00 yard target. Note the relationship of the
center of group to the center or the target. Rotate the turret the required number of clicks to make the
necessary point of impact move. Follow with the windage adjustment to bring shots to center of target.
Fire another group to see if proper adjustment has been made. Repeat as necessary until center of group
is in center of target.
- Once the rifle is sighted-in at 00 yds, you may install the proper BDC Turret for your caliber and
bullet weight (see “SELECT PROPER TURRET” below).
(NOTE: When the selected BDC turret is installed, the elevation cap cannot be used. If the standard
elevation turret is installed, the cap can be threaded onto the scope).
POPULAR CAILBER & LOAD COMBINATIONS
BALLISTIC
gROUP
Federal Cartridge.4 dia. -50 Rem, 55 gr. Bear Claw at 300 fps
G
Federal Cartridge.4 dia. -50 Rem, 0 gr. Partition at 3500 fps
F
Remington Arms .4 dia. -50 Remington Arms , 50 gr. V-Max at 375 FPS
H
Remington Arms .4 dia. -50 Remington Arms , 55 gr. PSP at 380 FPS
G
Winchester .4 dia. -50 Rem, 55 gr. Ballistic Silvertip at 380 FPS
H
Winchester .4 dia. -50 Rem, 55 gr. PSP at 380 FPS
G
Federal Cartridge .77 dia. 70 Win, 50 gr. Ballistic Tip at 300 fps
F
Federal Cartridge .77 dia. 70 Win, 50 gr. Partition at 3000 fps
F
Remington Arms .77 dia. 70 Win, 40 gr. PSPCL Ultra at 95 FPS
E
Remington Arms .77 dia. 70 Win, 50 gr. SPCL at 850 FPS
D
Winchester .77 dia. 70 Win, 50 gr. Partition Gold at 930 FPS
E
Winchester .77 dia. 70 Win, 50 gr. PP-Plus at 950 FPS
E
Federal Cartridge .308 dia. 30-0 Spring, 80 gr. AccuBond at 700 FPS
D
Federal Cartridge .308 dia. 30-0 Spring, 80 gr. Bear Claw at 700 FPS
D
Remington Arms .308 dia. 30-0 Springfield, 80 gr. A-Frame at 700 FPS
D