Bushnell 20-4124EU manual Popular Cailber & Load Combinations, Ballistic

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 100 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 100 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 100 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.224 dia. 22-250 Rem, 55 gr. Bear Claw at 3600 fps		G
Federal Cartridge.224 dia. 22-250 Rem, 60 gr. Partition at 3500 fps		F
Remington Arms	.224 dia. 22-250 Remington Arms , 50 gr. V-Max at 3725 FPS	H
Remington Arms	.224 dia. 22-250 Remington Arms , 55 gr. PSP at 3680 FPS	G
Winchester .224 dia. 22-250 Rem, 55 gr. Ballistic Silvertip at 3680 FPS		H
Winchester .224 dia. 22-250 Rem, 55 gr. PSP at 3680 FPS		G
Federal Cartridge	.277 dia. 270 Win, 150 gr. Ballistic Tip at 3060 fps	F
Federal Cartridge	.277 dia. 270 Win, 150 gr. Partition at 3000 fps	F
Remington Arms	.277 dia. 270 Win, 140 gr. PSPCL Ultra at 2925 FPS	E
Remington Arms	.277 dia. 270 Win, 150 gr. SPCL at 2850 FPS	D
Winchester .277 dia. 270 Win, 150 gr. Partition Gold at 2930 FPS		E
Winchester .277 dia. 270 Win, 150 gr. PP-Plus at 2950 FPS		E
Federal Cartridge	.308 dia. 30-06 Spring, 180 gr. AccuBond at 2700 FPS	D
Federal Cartridge	.308 dia. 30-06 Spring, 180 gr. Bear Claw at 2700 FPS	D
Remington Arms	.308 dia. 30-06 Springfield, 180 gr. A-Frame at 2700 FPS	D

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