Proudly known as Roy's favorite cartridge, the 257 WBY MAG was built to shoot ultrafast and hit hard. Initially developed in the 1940s, the 257 speeds out of the barrel at 3700 fps and is known to drop animals where they stand. On this episode we're diving into the history, development, and ballistic information of the legendary 257 WBY MAG.

On this episode we discuss:
Roy’s favorite cartridge
One of the first developed
Initially a wildcat cartridge
Necking down a 375 H&H
Technology at the time
Chronograph situation in 1944
Bullets and how far they’ve come
Pushing velocities
Using a 257 for elk?
Environments where the 257 thrives
Practicing on moving targets
A onceinalifetime Wyoming bison tag

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