A .308 is a .30-06 100 yards closer. That's about it....
Or 200, depending on the bullet weight.
Or 172.... Now you are talking MV and BC's which most folks on here think is silly since BC's only matter on unethical shots by unethical people. Careful not to get lumped in there...
- Greg
Success is found at the intersection of planning, hard work, and stubbornness.