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The 450 Bushmaster was designed as a close range, big bore hunting caliber for the AR-15 platform.  As with most AR cartridge conversions, it only requires swapping out the upper receiver. With the introduction of some new bolt action rifles in this caliber and many states changing game laws allowing straightwall cartridges for deer hunting, the  .450 Bushmaster is enjoying a surge in popularity.  Ruger now offers their American Ranch and Gunsite Scout bolt action rifles chambered in the .450 Bushmaster caliber.  This cartridge utilizes the common .452" diameter bullet, reloaders can use bullet weights anywhere from 160-350+ grains.

  250 for $169.00
$0.68/each

  500 for $312.50
$0.63/each

  1000 for $599.00
$0.60/each

* Starline Brass does not sell any loaded ammunition. What you are purchasing are brass cases only and will need to be loaded into ammunition in order to be fired from a firearm.



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Denton Bloodworth
Ky, Kentucky
March 03, 2019
Product Review
As with any starline brass these 450 are great choice in any rifle. .

John Scott
Iola, Texas
February 07, 2019
Product Review
I have used several different brass calibers from Starline Brass. The 450 Bushmaster is top notch and runs well in my AR platform rifle. I've reloaded several of the brass 8 times for working up loads and still no problems! I will buy again!