alright mate, as for info check out this site for the .308 and .243 click on the calibre on the left hand side of the page plenty of info
http://www.6mmbr.com/index.html
then type in calibre and ammo brand and you should see external ballistics for bullet you choose from the maker you choose, try hornady remmington,
sierra, nosler, there should be plenty of info for you,
http://www.chuckhawks.com/ammo_roundup_22LR.htm also try here.......
good luck