For cheap range time and learn to dial and read wind 223 with heavies.
6.5cm or 308 to go further on the cheap.
To hunt with out to a 1000? 7 or 300 PRC. Obviously 300 win or 7 rem would be cheaper. I don’t know but Budget and long range just don’t mesh well
This, 77 or 80 grain bullets in a fast twist .223 will get you to 600 yards. Nothing but a .22 LR would be less expensive for practice.