1.693 - 1.697 O.A.L.

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 calibre and many states changing game laws allowing straight-wall 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 calibre. This cartridge uses a small rifle primer and utilizes the common .452" diameter bullet, reloaders can use bullet weights anywhere from 160-350+ grains.

Starline prides itself on producing the highest quality brass case available. With a production process focused on quality not quantity, Starline makes the finest brass and has done for more than 30 years.