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.300 Win Mag

The .300 Winchester Magnum (also known as .300 Win Mag or 300WM) (7.62×67mm) is a popular, belted, bottlenecked magnum rifle cartridge that was introduced by Winchester Repeating Arms Company in 1963 as a member of the family of Winchester Magnum cartridges. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard length action. It is based on the .375 H&H Magnum, which has been blown out, shortened, and necked down to accept a .30 caliber (7.62 mm) bullet.

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IMPORTANT NOTICE

With the new CFO changes as of May 18, 2022, the new requirements to purchase a Non-Restricted Firearm online include:

  • We need a photo of the front and back of your PAL
  • Photo of the front and back of your Driver’s License or Government Issued Photo ID
  • Ensure you are using the email address that is on file with the CFP

We have added image upload fields to the order form to send your pictures. You can also attach them to your account or email them to us at [email protected].