I know absolutely nothing about ballistics programs. When shooting long range it has always been about minutes and BC's and I really haven't a clue how to work or where to use programs.

308197SP204 .824 197 12.8 46.4 1.82 25.3 0.99 All .308 calibres, subject to twist rate
The above data is from the GS bullet company data sheet. Reading it we have a 308 caliber 197gr bullet with a BC of .824. I am also working with a 1. BC bullet. If these bullets are traveling at 2950 and they are, from a stock 300 Win Mag and a 26" barrel.

What is the maximum range supersonic?
What is the energy at 1000 yards?
What does the program say is the minutes at 1000 yards? Trial and error I actually know this one. I just want to know if a computer program will come close to telling me what is know through testing.

The 1. BC 30 caliber bullet is made in Idaho and 3 of us are working very hard trying to talk the creator into making them in volume.
He also makes the highest BC 238 grain 338 bullet in existance.
Neal