King of WSM's
- Thread starter mcp1
- Start date
+1 to that!
A .308 with a good 180gr big game bullet should easily qualify under the BC regs. Or do you mean you prefer to use something bigger?I have a Rem M7 in .308, 20" pipe and a short mag box. All I can hope for with a 180gr and the case capacity remaining with such a long slug is a little over 2600fps, and that will barely make 2000ft.lbs at 200yrds. Once in a lifetime hunt for me, I likely won't put in again if this hunt is sucessful. I'd prefer not to deal in minimums
LongBomber
CGN Regular
- Location
- Fernie, bc
Looking at federal ammuntion - if the actual velocity from his rifle is 100-150fps slower than what the factory box says, the 308 may not make it for the energy req. at 100 yards. A 308 with a 20" barrel may not make the energy req.
bearkilr
CGN Ultra frequent flyer
- Location
- Nowhere, ......just past the middle
The OP's question was:
By "standard calibers", I'm assuming he means calibers to which each WSM cartridge is generally compared to. That would be:
270 WSM = 270 Win
7mmWSM = 7mmRem Mag
300 WSM = 300 WinMag
325 WSM = 338 WinMag
Of the four, the 270 WSM is the only one that has any velocity advantage over the chambering it is generally compared to, that's the only point I was trying to make.
There's no set standard at which point a difference in fps becomes substantial, to some it's 50 to others its 500.
Some may not consider the 270 Weatherby substantially faster than the 270 Win...........I would.
The opposite questions are also valid questions:
Would you buy a 300 Win Mag if you already owned a 300 WSM?
Would you buy a 270 Win if you already owned a 270 WSM?
As for the marketing argument, nothing new is needed for hunting, shooting or even fighting wars since the introduction of 7mm Mauser in 1892
Alex
Magpro seems to be the new magic powder giving outstanding velocity. Where do you get it? Neither cabelas or wss have it. I have also read on other forums that it is not temp stable, meaning that 3200 fps you get in the summer with your 270 win, won't happen when it's -20 and you're hunting. I have found the RL linne to be the same. I use retumbo specifically because there is virtually no difference between summer and winter fps. I'm sure alot of people would be surprised to see the difference in fps and poi between the loads they made in summer and what they are actually getting during hunting season.
I like h4350, h4831sc, h1000 and retumbo because summer and winter temps are virtually the same. Powders that give very high fps and tight groups, but shoot to different poi and lose 100fps or more in the winter don't do anything for me. And we all know slot of guys don't even think about that and go out in -30 and chrono loads. I actually get in the winter what I do in July which is something rl17, 19, 25 etc don't. I haven't tested magpro but others have and they said they lost a significant amount of fps between 80f and 0f. I hunt in colder weather than 0f.
The reason I mention this is because I often se magpro as the answer to why mags aren't needed. Well I can't buy it at two big stores and actual fps when hunting (which is all that matters to me) and what reloading books tell you isn't the same because they shoot it in a lab and not at -20. For hunters in Texas this doesn't apply. For me living in mb it sure does.
I like h4350, h4831sc, h1000 and retumbo because summer and winter temps are virtually the same. Powders that give very high fps and tight groups, but shoot to different poi and lose 100fps or more in the winter don't do anything for me. And we all know slot of guys don't even think about that and go out in -30 and chrono loads. I actually get in the winter what I do in July which is something rl17, 19, 25 etc don't. I haven't tested magpro but others have and they said they lost a significant amount of fps between 80f and 0f. I hunt in colder weather than 0f.
The reason I mention this is because I often se magpro as the answer to why mags aren't needed. Well I can't buy it at two big stores and actual fps when hunting (which is all that matters to me) and what reloading books tell you isn't the same because they shoot it in a lab and not at -20. For hunters in Texas this doesn't apply. For me living in mb it sure does.
BC Bigbore
CGN frequent flyer
- Location
- BC's Peace Country
I agree. Back when the WSM's were all the rage, I had my eye on the .270 version as it was the only one I could see any improvement over a standard cartridge and I finally ordered one. Wasn't I surprised when I opened the box and found this so-called short action/lighter rifle was heavier and longer than my old .270WCF & they are both Winchester Model 70 Fwt's.
IMHO if you already own a .270WCF, .300WinMag, 7mmRemMag, or .338WinMag, you don't "need" the WSM version. However, we are Gunnuts, so if you're looking to retire Dad's old ParkerHale hand-me-down that was rechambered to .300Mag back in 1964, by all means, pick up a .300WSM if that's what blows yer hair back.
- Location
- Dah Soo,ON
Are you guys still arguing about this?
It's the 7....end of story.
It's the 7....end of story.
Jordan Smith
CGN Ultra frequent flyer
- Location
- Calgary, AB
Winchester just started producing the 70 in 7WSM again...
- Location
- Dah Soo,ON
300 WSM is great for reloading but it somewhat defeats the purpose of a compact cartridge in a lighter rifle because of 300 Win Mag like recoil.
I might rebarrel my 270WSM to 300WSM because of better barrel life, greater choice of bullets and greater killer power but the increased recoil is making me think twice.
Alex
Jordan Smith
CGN Ultra frequent flyer
- Location
- Calgary, AB
That really depends on stock design. The Montana seems to soak up a lot of recoil. I've shot that rifle chambered in .325 a bit, and I was expecting the recoil to be WAY worse than it was. My buddies Ruger MkII in .338WM, on the other hand, does kick about what I would expect, which feels much worse than that Kimber .325...
archie_james_c,
I assumed you knew, but some posters on this thread were saying that only Browning chambers for the 7
archie_james_c,
I assumed you knew, but some posters on this thread were saying that only Browning chambers for the 7
The 338 RCM's do interest me and with a few hundred pieces of brass and some dies I'd be set for life... Anyone have experience with these? If there were more rifles chambered in 338 rcm it would be MORE tempting.
It seems like the 270 to 300 sized short mags don't offer much difference for me. But if I was shopping for a rifle in this range WSM chamberings wouldn't deter me from buying the rifle I want.
And I don't think 300wsm would bug me recoil wise.
It seems like the 270 to 300 sized short mags don't offer much difference for me. But if I was shopping for a rifle in this range WSM chamberings wouldn't deter me from buying the rifle I want.
And I don't think 300wsm would bug me recoil wise.
