Hello from Colorado

@G.I. Joe Who - Welcome to the forums! Lots of good information here. The Hunting forum is pretty active. Seems to be quite a few hunters staying busy. Don't forget youtube! Some really active shooters with tons of information.

What kind of rifle are you looking at? I suggest going .22 caliber, there are tons of .22 pellets / slugs available and are easier on the wallet.

Don't forget to budget for air!
 
What distance you planning your shots to be at? Some of the cheaper PCPs won't reach out as accurate as others. Not saying you have to go FX, daystate, AAA, etc, but Pdogs tend to be skiddish under 100 yards.

I would say 25 cal minimum to keep power and accuracy up at distance. IME, the larger the caliber in airguns, the more accurate they tend to be.

If weight/length isn't a concern, you could just get the tried and tru marauder rifle. Should work decent and not break the bank. Or buy once cry one!