RE: going hunting, first time...
Get to the range, and fast! Pick up about 3 different kinds of ammo. Get sighted in and then do some three shot groups with each kind. I would say anywhere between a 140grain to 160 grain for 7mm will be fine. If you dont get some tight groups, go get some other kinds of ammo. Like stealthyone said ckeck out the gun forum and good hunting!!!!!!!