Many of us have been reloading, hunting, shooting, and craving rifles for 40+ years. We have read/learned ballistic coefficients/sectional densities/ft pounds,wind drift, drop, MOA. The only really big advancement in my 40yrs seems to me is twist rate. Most of us probably already have enough ballistic knowledge to not have to consult much of anything to determine whether a particular cartridge is viable. In the end I guess it is necessary to know some data (even from trial and error experience). In the end it is just for fun.