Originally Posted by cpa0730jim
The .300wsm shoot hotter than a .300wm and barrels will only last 1/3 the life of a .300wm. The short mags will not push heavier bullets as well either. Go with the .300 wm without looking back.
completely false information on the WSM on several counts.
1. Barrel life- Danny Brooks won the IBS 1k Nationals and shooter of the year in 2009 with a 300 WSM with 4000 rounds down the tube.
That has never been done with a Win Mag, which was Danny's go to caliber before. Mine had 2300 rds down the tube before I rebarreled. The standard on a Win mag for 1k is 1000-1200 rds. WSM barrels are lasting 2-3x LONGER than Win Mags and that is the fact.
2. Ballistics- the WSM will run with and even faster in some cases than the Win Mag with up to 210 grain bullets. Winchester factory ammo lists the WSM as faster than the same bullet in the Win Mag. For all practical purposes, they are neck and neck ballistically.
However, with barrel life and short action vs long action, the WSM winds hands down every time, IF you know anything about the WSM.