To build a high-quality .300 BLK rifle with top-tier parts, you're going to be about $2,500 invested with a decent optic on top.It's a G215 there 2500 bucks they have a AR version than a bolt fully carbon fiber for 2200.
I looked on their website, but didn't see a bolt-action rifle. I would love to have a bolt-action .300 BLK "pistol" (SBA3 brace) like the Christiansen Arms MPP. I'll probably end up having to buy a Black Collar Arms pistol in .300 BLK (bolt-action). But I know those have to be pricey.