Interarms Mark X, .300 Winchester magnum cal. bolt action rifle. Serial #B39275. Excellent condition. 24" sporter barrel has an excellent bore. 98% blue/black finish is very nice. Black checkered synthetic stock has nice soft recoil pad - smooth and nice. Long extractor. Weaver mounts on each bridge. Perfect caliber for elk, moose, bear or African plains game. Super nice, super clean. Gunrunner West item.