I'm gonna suggest doing a little research, wikipedia has a ton of info. See if the 6.5 grendel suits you needs, then see if the price and availibility of ammo works for you.
Assumption is the mother of all ****ups.
Know what you know, Know what you don't know. -Paul Pedzolt
"Jack of all trades, master of none, though oftentimes better than master of one" -Mynshul