5) 30-06, very popular for hunting, got us through ww2
4) .308/7.62x51, great for everything, nato standard proven performance
3) 8x57 mauser, have you ever shot one?
2) .338 lapua, designed to arrive at 1000meters with enough power left to go through 5 layers of body armor
1) 7.62x39. used by the ak which has been the most influential gun in modern history. many a rebel/freedom fighter use it and in some parts of the world owning an ak is a sign of manhood.