You could download the free version of Strelok & play with it.
Enough features that you'll probably end up paying for the Pro after a while.
But at least you could get a feel for it.
Due to most of my shooting being hunting, i use different bullets for different game.
Example my 250 Savage.
I have 75gr Sierra Varmint, 90gr Sierra BlitzKings, 100gr Ballistic Tip, 115gr Ballistic Tip, 115gr Berger VLD-H, 120gr Sierra HPBT GameKings loaded.
Strelok allows me to enter different scope settings for the zero of each type of bullet.
Hence if i'm zeroed for the 90gr BlitzKing, and i want to shoot the 120gr GameKing it will tell me how many clicks to go up to zero the rifle for that cartridge.
I probably didn't explain that very well.