Bushnell LASER 20-4124 User Manual
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SELECTINg ThE PROPER TURRET
Each riflescope comes complete with seventeen interchangeable turrets. Eight of these turrets are
calibrated with distance in “yards” markings and eight for “meters” covering most popular factory
cartridges. The seventeeth turret has no distance calibration but is provided so that you may make your
Remington Arms .308 dia. 30-0 Springfield, 80 gr. BRPT at 700 FPS
D
Winchester .308 dia. 30-0 Sprg, 80 gr. FailSafe at 700 FPS
D
Winchester .308 dia. 30-0 Sprg, 80 gr. Partition Gold at 750 FPS
D
Federal Cartridge.308 dia. 300 WSM, 80 gr. AccuBond at 90 fps
F
Federal Cartridge.308 dia. 300 WSM, 80 gr. Bear Claw at 305 fps
F
Winchester .308 dia. 300 WSM, 80 gr. Ballistic Silver Tip at 300 FPS
F
Winchester .308 dia. 300 WSM, 80 gr. Fail Safe at 970 FPS
F
Remington Arms .308 dia. 300 R.S.A.U.M., 80 gr. PSPCL Ultra at 90 FPS
E
Remington Arms .308 dia. 300 Wby Mag, 80 gr. PSPCL at 30 FPS
F
Lazzeroni Arms .308 dia., 7.8 Patriot, 80 gr. Partition Lubed at 384 FPS
H
Lazzeroni Arms .308 dia., 7.8 Warbird, 50 gr. Lazerhead at 3775 FPS
H
Lazzeroni Arms .308 dia., 7.8 Warbird, 8 gr. HPBT MatchKing at 3550 FPS
H
own distance markings fit any cartridge not covered. From the Ballistic Chart below (or the complete
charts on the CD), select the proper turret for use with your caliber and bullet weight combination.
Example: You have a .300 WSM and are shooting the following Winchester brand load: 80 gr. Ballistic
Silver Tip bullet at 300 FPS muzzle velocity. This combination falls under Ballistic group “F”, so you
would use the turret marked “F” in either yards or meters.
What if your caliber is not listed?
While we have taken great care to include as many calibers and brand names in our ballistic tables, new
loads are always being developed. In additon, some shooters load their own ammunition with unique
ballistic characteristics. If you cannot find your load in the ballistic tables, you can still use the BDC
feature.
Option 1:
As above, sight in your rifle at 00 yds with the standard turret. Then shoot the rifle, without adjusting
the riflescope, at 300 yds. Measure the bullet drop from the point of aim. Using this drop, select the
ballistic group from below. If you will be shooting at longer distances then you may want to check the
bullet drop at 500 yds. Because there is enormous variation in rifle barrels, chambers, and hand loads,
you should thoroughly test the ballistic setting before actual hunting. You may need to move up or down
one group depending upon your tests.
Option 2:
Included with the marked turrets is a blank turret. After your rifle is sighted in at 00 yds, replace the standard
turret with the blank turret. Without adjusting the elevation, shoot the rifle at various distances up to the