Bigbulls is right.....!
If you are looking fora caliber to handle "EVERYTHING" up too and including deer, you can't do better then an .243.
No caliber can do everything, however some are considered dual or even triple threats.
http://www.reloadbench.com/cartridges/243.html
http://www.gunnersden.com/index.htm.243winchester.html
Hope this helps to clearsome things up