Originally Posted by deathwobble
.300 wsm is a sweet one too but it wont out run its big bro. .300WM should run a full 200 fps faster. Kinda like comparing the 30-06 to the .308.
I don't know where you got your "misinformation" but it's wrong.
My custom Model-70 Long Action 300WSM is out running my factory 24" barreled Winchestermodel-70, 300Wby!
3100+ fps with the WSM & 3062 fps Max with the Wby with 180 Accubonds.
Now, I will concede that the nod goes to the WinMag for case capacity for launching heavies, but I'll be willing to bet its by a few FPS not anywhere near 200 fps.
All my homework has shown 2900+ fps to be about where I'll wind up launching 200gr Accubonds. Which is about what every 300WinMag I've played with has pushed them to.
Don't get me wrong, my next rifle I build will be a 300WinMag. I love that cartridge, but it will basically be a twin to my 300WSM ballistically. I guess I just have a love affair with 300's.
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