Given the stated purpose and budgetary restrictions, I'd sell it and get something that will work just as well out to 500 yards and not cost $7 per shot. You won't want to practice much to become proficient with the rifle if you're seeing dollar signs every time you squeeze the trigger. Something between the 6.5 Creedmoor with 147 ELD and 7 PRC with 180 ELD would give you all the ballistic advantage you likely need and want.
Once you're done getting a rifle that better fits the need, I'd grab something like a new SWFA 10x to throw on top.
Sound advice right here.
