Winchester Ammo WSC338WMU Unprimed Cases 338WinMag Rifle Brass 50/Bag
http://www.tandktactical.com/shop/020892632127-winchester-ammo-wsc338wmu-unprimed-cases-338winmag-rifle-brass-50-bag-10134
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Winchester shellcases are engineered to precise tolerances to ensure smooth-feeding and positive chambering.
