From their webpage: "X-Caliber Barrel & MFG uses state-of-the-art deep-hole drilling equipment to turn cold-rolled steel bar-stock into the straightest, most concentric and precise rifle barrels possible."I think they're Wilson blanks based on what I've read.
We have a site sponsor who uses Wilson blanks also.
Just sayin'.
Ive used a few of them.My 33XC never shot worth a damn. My 300 RUM Ackley Improved is a Lazer. I dont think their 6 groove 338 caliber barrels shoot good at all. They sure are not concentric. Ive had 3.. And three Duds. I went back to Bartlein and it shoots great.Same Reamer and same gunsmith.That just my experiencve with 338 caliber. Like I said my 30 cal is a lazer. This is my opinon as well as Frank and Quarter Minute Magnum..Even groove like 6 groove dont shoot well with 338 caliber.Thats my experience and then I heard 3 other gunsmiths say say thing. I think Xcaliber barrels are ok.Its just the 6 groove Ive bought.Take it for what its worth.Does anyone have anything good/bad to say about them?
Several friends tried them. Some drove tacs, others not so much.
X-Caliber are excellent barrels. Have 3 of them in 22, 6mm and 6.5 Creedmoor. My go to bbl for any AR platform.