oldreloader
Member
I had a buddy brought me some 300 RUM to reload. One of them looked odd as soon as I picked it up. The head stamp said 300 WBY MAG.I called him and he swore all the cases he gave me were once fired factory ammo from the same box. I could tell the case has definitely been fire formed.. Weird that it would even fire. A belted magnum to boot. He said he did remember one case being a little hard to extract!