Hi, I have a couple 6.5 Creedmoor rifles which have been great out to 1,000 yards but my ballistics charts are telling me that trying for 1,500 is a stretch and hitting at a mile is probably more luck than accuracy. The thing I love about them is I can shoot all day with pretty much zero fatigue. Shooting bigger stuff like .338 LM or .50 BMG is a lot harder on the ears, the shoulder and the wallet. I want to find something I can shoot without a brake that won't beat me up too bad and won't be ridiculously expensive to build or shoot. It seems like 284 Winchester is the efficient cartridge that will stay supersonic out past 1,600 yards with just slightly more expensive brass (about 15%), about 20% more powder and 180-ish grain bullets that seem to cost about the same as 140-ish grain 6.5mm bullets. Barrel life should be a little less but negligible with the infrequent times I can actually shoot more than 200 yards. I think reloads work out about $0.05 more expensive per round than 6.5 Creedmoor or .308. I'm planning to build two rifles over time. The first is based on a Savage Axis long action in an MDT LSS chassis using a 3.560" magazine, and an Indian Creek Design P-Body 2 stock with an STFU folder. What I learn from that rifle I'm going to apply to an ARC Archimedes long action in an ARC Xylo chassis. Both actions use a Savage small shank barrel thread and will take a Savage Pre-fit barrel. Getting down to the big question, I'm looking at buying an X-Caliber .284 Savage Pre-fit barrel that I can try out in both. It will be 31", the longest offered, in a "light varmint" contour, 416 Stainless and cut with a PTG reamer. I'm having a hard time figuring out exactly what the chamber specs are supposed to be but I'm also wondering if PTG can actually grind a reamer right. I had a bad experience the last time I dealt with PTG. Should I trust X-Caliber to make a barrel that will push good velocity without excessive pressure? If it was a common chambering and I could get a review of a barrel cut with the same reamer, I wouldn't be worried but I can't find a matching review. I have a few rifling options. There is a 5R option but 1 in 8" twist. There is a 1 in 8.5" twist 3 groove option and a 6 groove 1 in 9" twist. The two I think I can rule out are 6 groove 1 in 8" and 1 in 10" twist. I think I should probably go for the 3 groove 1 in 8.5" even though I would like the 5R. The good part about this barrel is that X-Caliber has a 30% off in August promotion which will bring the price down to $343 with 5/8-24 threads, a thread protector and the contour should allow it to be set back at least once. I'll eventually get a shouldered barrel for the Archimedes but am I making the right choice to start with the X-Caliber barrel? I'm going to order 6.5-284 Lapua brass, a couple boxes of Hornady 180 grain ELD-M bullets and some Berger 184 grain bullets tonight. It sounds like H4831sc is the powder of choice for decent MV without a ton of wear. I will be throwing my charges with an Auto-trickler, resizing with a Hornady Match bushing style full length sizing die and seating bullets with a Hornady micrometer seater. I may upgrade my dies later if necessary. Small questions: what is the best die to use for necking up to .284 and what primers should I try for this combo?