300 WSM vs 300 win mag

[JF_Idaho]

Wsm pros

Longer neck
Shorter powder column=more consistent and efficient burn
Higher pressure 65k vs 64k wm
More efficient - less powder


Winmag pros

Slight increase fps
Better factory ammo choices/availability
Can chamber better from magazine

 

[kc0yef]

WSM SHORT ACTION WinMag long action

 

[Kendall Sorensen]

My 300Wm 24 inch tube throws a 180 accubond @3050 my 22 inch 300wsm is @ 2845 with the same accubond. Recoil is about the same.

My 23” bbl 300 WSM Browning sends 180 Bondstrikes from muzzle @3060 with 60 gr 4350 .

 

[Nomosendero]

It is common for a 300WM 24" to go over 3100 with a 180. But the heavier the bullet the more the 300WM pulls away. I like the 215 in my Seekins 300WM.

 

[madcalfe]

My 23” bbl 300 WSM Browning sends 180 Bondstrikes from muzzle @3060 with 60 gr 4350 .

3060fps seems fast with only 60gr H4350. I'm at 64- 64.5 grins of H4350 to get 3050fps in 4 different 300wsm in 24" barrels.

 

[journeyman713]

My 23” bbl 300 WSM Browning sends 180 Bondstrikes from muzzle @3060 with 60 gr 4350 .

Similar results seen
My Browning X-bolt pro, with suppressor -
3046fps Bondstrike 180
2921fps Berger 185

 

[ropeup79]

WSM SHORT ACTION WinMag long action

That depends on what rifle it’s in. In say a Tikka with a LA bolt stop and LA mag you can seat bullets out to over 3 inches.