michaelee84, "Does it come with the load data to make sure ballistics are gonna match the turrets?"
You are thinking backwards.
You make your most accurate load then shoot your drops at 200, 300 and 400 yards to see what the arc your bullet takes as it travels down range. Then give that info to the turret maker or custom label maker so they can calibrate them for your load and bullet. You never change the load and bullet so it will always shoot the same at that altitude.
In other words you have the turrets made to match your load.
You can have them make the custom turrets or custom turret labels with ballistic programs, but by using my suggestion they are more accurate. Every rifle shoots a little different. It can make a difference if the barrels are 16", 18", 20", 22", 24", 26", 28" or maybe 30". By shooting at different distances and finding out what the arc of the bullet it fine tunes your turrets.
PS: I do this before having the turrets made. Here is the first target I shot with my new custom turret at 400 yards. I shot 3 times to see "IF" I was even on the paper. It is perfectly dead nuts accurate all the way out to 900 yards which is as far it will dial for my 6mm Norma BR.