For sale, Custom Mach 5 rifle built by Klaus Horstkamp at State Arms Gun Company of Waunakee, WI. This is a wildcat round developed by Klaus. It is a .50 BMG that is necked down to .375 diameter. This round is capable of exceeding 5,000 FPS! With that kind of speed, this is the KING of flat shooting and is practically unaffected by wind or weather. This gun is "point blank" over 600 yards away! It is accurate to several times that in the hands of skilled shooter.
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