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| Ballistic Information System BIS™ |
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The holdover (H: correction value for the aiming point) depends on bullet drop...or the shooting distance and the trajectory (ballistic curve) of the ammunition. This calculation is done by the integrated Ballistic-Information-System by Carl Zeiss. After measuring the distance the Victory RF models display not only the range but also the holdover.
The selection of the appropriate program for the calculation can be done easily in 3 steps:
- What measuring unit is used?
Choose between "meter" and "yard".
- What is the sight in distance?
Choose between 100 m and GEE (if meter is used as unit), or 100 yd and 200 yd (if yard is the measuring unit).
- Which one of a set of ballistic curves fits best to the trajectory of the ammunition used?
Compare your ammunition's data with the curves in the instruction manual and select the appropriate one.
Ballistic programs for using BIS
All ballistic curves for selecting the right program.
This selection of the program (e.g. EU 4) is made using the SET button.
The calculated holdover is displayed approx. 1 sec after the range. A display "H32" e.g. means that higher aiming is required with the holdover of 32 cm, if meter is selected as measuring unit. When using yard as unit the holdover is displayed in inches.
Please note
The Ballistic Information System BIS is not to be used as a replacement for the hunter's assessment of the situation, but rather to support and increase hunting safety. We recommend shooting test shots from different ranges, which can be used to check the correct match of the specifications with the actual points of impact. | |
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