Blaser QDC+


There are situations on a hunt where a long-range shot is required. Be prepared with the optional Quick Distance Control+ (QDC+) that you can easily retrofit yourself.

The QDC+ allows you to adjust the shooting range up to a distance of 500 m directly on the reticle adjustment of your Blaser riflescope. For optimum adjustment to your rifle, the set includes ten interchangeable engraved rings designed for a wide range of hunting ammunition. Individual markings can also be applied to an additional blank ring. Zero in, adjust, and hit your target!

The Blaser QDC+ is available for the Blaser riflescope B2 3-18x50 iC QDC+ as standard and for all Blaser riflescopes (except driven-hunt riflescopes B1 1-7x28 iC and B2 1-6x24 iC S) as an add-on part for retrofitting.

The rings


With the Blaser ballistics calculator, you can easily determine the QDC+ ring that best matches your rifle and selected load. There are different ways of doing this: 

  1. If you are using Blaser ammunition, select your Blaser riflescope and your Blaser load from the menu. The program then calculates the trajectory and the appropriate QDC+ ring .
    All parameters (sight height, elevation above sea level, temperature, humidity, muzzle velocity and ballistic coefficient) can be entered or overwritten with your individual values for even more accurate results.
    As muzzle velocity also depends on your rifle and the barrel length, we highly recommend measuring the muzzle velocity for the respective ammunition on your own rifle and to input the measured value. 

  2. For ammunition not listed in the menu, select the first option (own input) under “Choose load” and enter the muzzle velocity and ballistic coefficient (G1) in the corresponding fields. This information can be found on the ammunition packaging from most manufacturers. Once again, all parameters can be adapted if necessary in order to obtain an even more accurate result.
    Note: The bullet weight is irrelevant for determining the trajectory and therefore does not need to be entered.

  3. Known trajectory information can be entered directly by activating “Use measured values”. Here, you can enter the number of clicks required for a clean shot at the respective distance.
    The result is calculated up to the furthest shooting distance for which the values were entered.

 The calculation provides the following results: 

  1. Recommended ring
  2. A diagram of the ballistic curve for all 10 available rings, with the trajectory of your ammunition highlighted
  3. A table with the trajectory data. For the recommended ring, the table additionally shows the maximum deviation (in centimeters) of the determined trajectory over the respective distance. This allows you to estimate up to which distance the selected ring will provide the actual trajectory with sufficient accuracy to reliably hit the target.

Note: Always carry out a test shot with the selected ring before using it on the actual hunt to verify the result, and please note that the justifiable shooting distance can be limited by a number of factors in practical application.

Use measured values
Bullet drop in klicks at: