300 Winmag Ballistics - When Is Pooh Shiesty Birthdayindexchannel 3 News Connecticut Today The. 300 win mag is based off the parent case. 375 h&h magnum with a belted large rifle magnum primer. The ballistic performances based off five grain types for velocity are 3,260 ft/s.
When Is Pooh Shiesty Birthdayindexchannel 3 News Connecticut Today