Re: What to buy to try out
I prefer the center grip guns (Rem or HS). As far as what cartridge, XP is correct, depends on what you want to do with it. A good start is something in the 308 case or 284 case line, (260,7mm-08, 308) or 6x284, 6.5x284 or the 284 win). with the HS the custom work is all but done for you , you can find some Rem. out there that are already customized, (but not many). These guns are a blast to shoot and many (most) of them will out shoot rifles.
good luck in your search