Vortex optics has a ballistics calculator on there web site that saves data and allows you to print a dope (data on previous engagement) sheet. I have used it out to 600 m and it’s pretty close. You can input weather conditions altitude and other environmental factors.
I also use iSnipe and it isn’t bad either. The two programs are usually within .1 mill (one click on my scope) of each other.
If you want the best spend the cash on a Kestrel with applied ballistics software
https://youtu.be/N1nN4KRpRKk
Ps the LRBC is currently down for maintenance on vortex site