How far and how often do you shoot? If 500 is a long way, then you don't have to go any further than Walmart.
I built (3) rifles for myself in Sept - Oct 2017:
Sav 12 250 Sav
Rem700 6.5-06
Rem700 7mmRemMag
The each weighed ~ 10 pounds with bipod, scope, sling, ammo, ect.
They each cost $3k ~ $4k in parts with scopes. I have a lathe and mill.
The 7mm required less skill in compensating for range and wind, so I shot all (4) deer with the 7mm.
The longest shot was 625 yards. I could have done that with an off the shelf 7mmRM from Walmart.
I keep wanting a better rifle, but the rifles are good enough... I need to get better.