y_not5
I am making some assumptions to come up with this ballistic sheet for you....
I am assuming you a re using a scope
I do not know your elevation sp I am using 2500 feet
With a 100 grains of loose t7 I am shooting the 250at 1750 fps average
I am using a temperature of 38 degrees
No crosswind and no up or down angle on the shot
If I need to make any changes let me know