Yes I did both. Deleted everything and reentered also and still same. So to compare I put his data in my shooter program and everything works. Compared his and in the settings and everything is the same so I'm stumped.Did you pick the bullet from the dropdown list? Did you add the bullet length?
Ok. Thank you for that. I will look in to that. Much appreciated.Nan is typically an error message from a bad calc. (Not a number). Not that you don't have numbers, but one could be out of range. It could be as simple as needing a decimal point in the right place; such as BC or caliber?