Peterson Brass Belted Mag Basic Unprimed Box of 50

Peterson Brass Belted Mag Basic Unprimed Box of 50
Peterson Brass Belted Mag Basic Unprimed Box of 50
Peterson Brass Belted Mag Basic Unprimed Box of 50
Price:$114.99$85.99 SALE!
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$1.72 per piece
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Availability:In Stock
Due to the packaging and shipping process, case necks are often slightly dinged or bent and need to be rounded up and sized to give proper neck tension. New and/or fired cases must be full-length resized or have the expander ball of the sizing die run through the case neck prior to loading.
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Product Information

Made in the U.S.A.

Now offering Basic Brass in the Belted Magnum calibers.

Peterson Cartridge makes finished casings in the popular belted magnum calibers, like .300 Win Mag. and 7mm Rem Mag. According to president Derek Peterson, “We’re now offering belted magnum basic brass for those customers who want to form it into their favorite belted caliber.” 

Common belted calibers that the basic brass can be formed into include: 

  • .350 Rem Mag.
  • .338 Win Mag. 
  • 8mm Rem Mag. 
  • .264 Win Mag. 
  • 6.5 Rem Mag. 
  • .300 H & H Mag. 

Dimensions of Peterson Cartridge Basic Brass:

  • Head diameter: .528” 
  • Overall Length: 2.89” 
  • Opening at mouth: .494” 

Peterson concluded, “If you have a magnum caliber gun you can’t get brass for, or if you just like to experiment, see if our belted magnum basic brass can get you the outcome you are looking for.” 


Warning: Only use Peterson Cartridge Co. casings in firearms in good condition, designed, marked, and chambered for this cartridge. Do not use Peterson Cartridge Co casings for “fire forming” or any other purpose other than what they were designed and tested for. Peterson retains no responsibility for the enclosed casings if they are used outside of the manufacturer’s recommendations.

This is not loaded ammunition.

Read 1 Reviews - Average Rating: 5 stars

Belted Mag Basic

By Scott D. on Feb 24, 2022
This is absolutely fantastic brass! Easy to form. I've formed several different cartridges without any problems. Just remember to anneal between steps.
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