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Starline Adds .450 Bushmaster Brass

SEDALIA, MO – Starline Brass has recently announced the addition of .450 Bushmaster to their growing line-up of quality rifle brass, which will soon include 6.5 Creedmoor (small and large primer pockets), .223 Rem, 7mm-08 and .260 Rem. Starline’s new .450 Bushmaster rifle brass is produced with the same rigorous quality control standards that Starline has become known for.


To order Starline’s .450 Bushmaster cases factory direct online, visit


Nicknamed “Thumper,” the .450 Bushmaster was designed as a close range, big bore hunting caliber for the AR-15 platform. As with most AR cartridge conversions, making the change to .450 Bushmaster only requires swapping out the upper receiver.


With the introduction of new bolt action rifles in this caliber and many states changing game laws to allow 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.


Starline is a family owned business that prides itself on producing the highest quality brass cases available at the best possible price. For more than 40 years, Starline’s unique manufacturing process and commitment from their team of employees has distinguished Starline from the competition. Starline manufactures a full line of handgun cartridge cases, and has recently begun producing rifle brass.


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Starline .450 Bushmaster