My random access memory slipped a bit! One of the standard references is the classic SPG LUBRICANTS BP CARTRIDGE RELOADING PRIMER, 1992 Mike Venturino & Steve Garbe. Not only does it have recommended calibres and loads, it also has ballistic tables with data up to 1,000yards including wind drift tables. The drift figures answer only one of your questions, the other, where does the wind have the greatest effect, I will leave to others to answer..