Build is a 6.5 Creedmoor. Ordered a Criterion 22" barrel from Primary for 271.00, it should arrive Fri. Still need the receiver to go on sale for Independence Day. I'll check out the suggested Toolcraft bolt and carrier. Looking for sales. Here is where I get screwed up, I rather a bunch od supplies, get confused, and box the stuff until later. Then forget about it. This time I'm dragging the whole crew in on this deal. I can rough in a house, ( plumbing ), waste lines, water lines, vents, gas lines, heating, boiler, HW heater, off the top of my head. Give me three parts from a rifle build and I'm stuck. I ordered the barrel right? Now I'm concerned about head space, how to adjust the chamber, what tools, gunsmith??? I don't have a challenge yet and I'm already stuck on finding solutions. LOL. Anyhow, I will keep you informed.