Using Lapua drag-function in Strelok Pro [iOS]

 

Return to back

Let's assume, what you have .338 caliber and 250 gr Lapua Scenar bullet.

1. Enter Cartridge name and bullet speed only and tap drag-function select button

Click to enlarge

2. Tap "Download" button

Click to enlarge

3. Tap "Download Lapua drag-function" button 

Click to enlarge

4. Find  and select drag-function for you bullet. The drag-function will be added to your drag-functions list and current screen will be closed

Click to enlarge

5. Select your drag-function and tap OK. Screen will be closed and drag-dunction will be selected for your cartridge. Balllistic coefficient value is dimmed, because it's not used in this case.

 Click to enlarge Click to enlarge

6. Bullet parameters will be setted to your cartridge automatically from drag-function

Click to enlarge

7. Zero your rifle and save you zeroing weather.

Click to enlarge

 

8. Now you are ready to shoot. Shoot to 800 yards distance

Click to enlarge

9. Do 'truing' by velocity if needed.
Shoot at distance bigger than zero distance. Assume, this is 800 yards (Distance should be greater than the zero distance. The farther, the better). Calculated elevation for this distance is 80 clicks
Find out REAL elevation is needed to hit the target. Assume, this is 86 clicks.
On the trajectory validation screen input Distance as 800 yards and Elevation as 86 clicks.
Tap button "Calculate" and muzzle speed at which elevation will be equal 80 clicks will be calculated. It this case, it will be 2674 f/s
Tap button "Use this velocity" and this calculated muzzle speed will replace your current muzzle speed (2763->2674) and screen will be closed.

Click to enlarge

On the main screen tap "Calculate" button and you will get calculated elevation which equals REAL elevation - 80 clicks

Click to enlarge
Now you can input any distance and hit the target.

 

 

You're ready!


Strelok Pro for iOS