What is wrong with an older Winchester or Remington with iron sights?
Something along these lines
Attachment 12458
I have a really nice Remington 700 ADL with iron sights in 243 that I picked up at a pawn shop for $250 a few years ago. With my reloads and a Vortex PST I can consistently hit a 12x12" steel target at 450 yards and at 100 it will print 5 shots into a little over an inch. I would think that would be more than sufficient for most hunters.