Hi, I just got a Remington model 700 in a 300 weatherby mag caliber. Since the weatherby ammo is hard to find can I shoot 300 Winchester mag rounds in a 300 Weatherby rifle?
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They are two different calibers entirely. The .300 Wby is longer, and will allow the .300WinMag to chamber, but that leaves a lot of dead space in the chamber.
ONLY shoot .300 Wby, and know that it is a better round than the .300WM.
Keep an eye on Midway, as they sometimes have good sales on .300 Wby.