Question about ballistics apps

[BamaBrad22]

First off hello, as I am new to the forum and after browsing the site for a while I figured I'd join, now down to business.

I have installed two ballistics apps one is the Sterlok+ and tje other os Exterior Ballistics which both are great, especially if I could understand what I need to input to get my results. My problem is I have a Ruger American Rifle in 270 toppes with a Vortex Viper 3x9x40 BDC. I am wanting to know that if my rifle is sighted in dead center at 100 yards what distance is the three dots below the center reticle for my hold over. I am shooting federal power shock 130gr bullets and I have the BC and actual muzzle velocity from shooting through a chronograph. If anyone has used these apps or similar could you in lighten me on what I need to input to get the holdover results?

I have been to several different website such as JB Ballistics, Gun Data and several more, but I would lile to use these apps I paid for. Any help will be greatly appreciated. Thanks.

 

[taliv]

welcome to THR

is this your reticle?



if so, then they are
1.5
4.5
7.5
MOA respectively.

That means, in your program of choice (I use shooter, so am not familiar with the specifics of strelok), you probably need to select your 130g fed power shock bullet from the bullet library, and enter the muzzle velocity.

Once you calculate the table, just search down the list until you hit 1.5, 4.5 and 7.5 and read the corresponding yardages.

However, I can tell you that it will probably be close to 200, 300, 400 yards

 

[jmr40]

If you are zeroed a 100 using the crosshairs, the 3 dots will be pretty darn close to 200, 300, and 400 yards. You might find the actual zeros are +/- 15-20 yards different, which means you might be an inch or less off at those ranges. But unless you and your rifle are capable of 1" groups at 400 yards your group sizes at those ranges will be bigger than any variations from the above.

If you zero the crosshairs at 200 yards you will be pretty close to 300, 400 and 500 with the dots.

You might get a slightly more accurate number from an app, but you still need to shoot at those ranges to verify. My phone app use has been limited to the one for Nikon scopes. I have used some online ballistics programs too That, and actual shooting have pretty much shown that most all scopes with long range dots work this way.

 

[BamaBrad22]

That is the reticle for the scope I have. Thanks for the help it's much appreciated.