A few weeks ago, my buddy Mike from Montana Shooting Institute told me about a new Montana based barrel maker called X-Caliber located in Kalispell, MT. He had recently used an X-Caliber barrel in his AR-10 build, and reported groups under .5 MOA with match ammo and a GI trigger. That definitely peaked my interest, so last Friday I drove up to Kalispell to a have look at their operation.
X-Caliber has been in business less than a year, but the folks who work there are not new to the barrel making game. Far from it. The handful of employees …read more

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