want to get a weapon that has plenty of power, that is accurate and is economical to shoot.
Sounds like an odd six to me. Ammo is cheap and available anywhere in all different types, OODLES of knockdown power, and can be as accurate as any gun out there. I shoot a Tikka T3 Lite and I would suggest it to anyone, it is a little more expensive but not too bad. Maybe check out the gun forum to get some more thoughts on different rifles.