I have both a WSM (26" barrel) and WM (27.5" barrel) on long actions. The WSM is loaded to just under 3.2" so you'd need a medium action if you wanted to shed a few ounces. To give a more equal comparison I built my buddy a 26" barreled 300wm (essentially the same build as my 300wsm) and we shoot the same 2960fps with 215 Bergers. He uses H-1000 and I use R-26. That isn't a totally fair comparison because he can get more with N-570 and R-26 maxes out a 300wsm. I have 6 reloads on my Winchester cases, and they are still going strong, so it's not a hot load. There is another node near 3100fps with a 300wsm and R-26 but you'd probably only get 2-3 loads from a case. Maybe if someone made some good brass for it then that would be doable. There isn't enough difference between the 2, when your maxing them out, to worry about. Like others have said the 300wm is a better choice for ammo availability. Neither are perfect with a SAAMI chambers to go long IMO.
Which 300?
- Thread starter RemHutch50
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I dont know, Steve would be the one to ask. My guess is no if they were to be seated so the bearing surface is at or above the neck shoulder junction.
MontanaRifleman
Well-Known Member
Monos are longer for same weight/BC cup and core
Harvey Durham
Well-Known Member
Inside 1,000 yards the 300wsm is fine, I don't understand the weight difference though? A 300RUM would be the best rifle in a 30 caliber. I have a 300 Norma mag .284 and it will our shoot any 30 caliber out there I think. I actually have a 300wsm and it's an awesome rifle an super accurate. I believe the world 1,000 yard championship was who last year by a 300 wsm.
Happy Hunting,
If you have a problem with that try MRP. you will not have a problem any more. I was pushing 210s to 3000 in 28" barrel.
Sneuses
Well-Known Member
Just bought a Sako stainless hunter little heavier than you might like. The 85 has a carbon and finnelite that are right at 7 pounds.
https://choose.sako.fi/global
My question still stands Ziess, Swarovski, or Steiner.
Sneuses
Well-Known Member
As much as I love my 300 Weatherby's,( I own 4 of them ) my pick would be the 300 WM for all around use. Rifle and ammo availability is excellent, performance is excellent with the heavier bullets. If you can find one with a 1-9 twist, you can shoot with confidence any practical bullet weight.
Wolf76
Well-Known Member
You realize the partition is a soft point bullet. Its the same difference between ibuprofen and motrin.
And a 26" barrel on the wm would make the velocity difference bigger.
KyWta
Member
Or we have different ideas of what is considered long range. Im not referencing hornadys manual on velocity. I have both calibers and can assure you the win mag has more capabilities than the WSM. Love them both. But all thing being equal barrel lengths the win mag is faster with heavies. And like stated a few comments before. A win mag with 215s is an awesome combo that wont fight you on mag box lengths in most rifles you mentioned.
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Just pointing out those are all 10" twist. I saw somebody earlier mentioning you might want a 9" for longer/heavier bullets.
A WSM wont fight you either on mag box length in a med. length action. Done on a med length action with a reamer that has
.225 freebore it will be knocking on the door of a WM in equall length barrel.
What action and reamer is your WSM built on? Everbody is gonna argue about which one is the best, they all will do what the O.P wants set up.properly.
.225 freebore it will be knocking on the door of a WM in equall length barrel.
What action and reamer is your WSM built on? Everbody is gonna argue about which one is the best, they all will do what the O.P wants set up.properly.
