Welcome to the forum!! This is a question ask alot on here,there are many good rifles in that price range(remington,ruger,browning,ect).You really need to hold them to get a feel of how they shoulder for you.As far as calibur,What are your needs---Deer,elk,bear,moose???Here are my picks.
Deer and down--25-06
Deer,elk ---.300wm
Elk,bear,moose .338wm
You already have a calibur that is the most versatile of all.