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Posted By: Zackman 358/300wsm - 10/02/17
Hello just joined today! You all seem to know a lot about a lot!! So I have a finished at 24 shilen 1-14 twist barrel sitting here from a build I had done a few years ago a 358 Hoosier! Now that we in Indiana can hunt with about anything I'm thinking about reaming it to neck up 300wsm to 358! But my only concern is does a rem 700 short action have enough coal room to load 200 gr nosler accubonds or Barnes 200 ttsx with out the ogive of the bullet being down in the neck of brass so far you have to role crimp?? Or will what bullets you guys shoot with best luck? And what powders an any guys have a load sheet or any advice on this I'd love to talk about it!! The 200 gr accubond I loved in the 358 Hoosier! Thanks for any advice!
Posted By: smokepole Re: 358/300wsm - 10/02/17
I used to load for a 358 WSM. It was built on a Model 70 originally chambered for a 7 WSM and had plenty of mag. space. Still have the barrel. It shot 225 partitions well but recoil was sharp. The most accurate load was 72.5 grains of R-17 for 2950 fps. That's not published or tested data so start low and work up.

Base to ogive length was 2.340" if that helps any.
Posted By: 458 Lott Re: 358/300wsm - 10/02/17
I'd thought about re-chambering my 350 rem mag to a 35 wsm, but IMHO the 350 rem mag has all the recoil I want in a medium weight medium bore and I figure 225's @ 2700 fps are all that I need for what I use the rifle for.

Having had a 35 whelen ackley and 350 Rigby I'd expect RL 15, Varget and similar burning rate powders to be the best choice for the round.
Posted By: toad Re: 358/300wsm - 10/02/17
my .350WSM is on a M70, but it should work in a SA M700.

.350 RM on the left, .350WSM on the right

[Linked Image]
Posted By: Zackman Re: 358/300wsm - 10/02/17
What one do you like best!? And what powder do they like I have a 350 rem haven't loaded for it yet
Posted By: Zackman Re: 358/300wsm - 10/02/17
Thank you!!
Posted By: Zackman Re: 358/300wsm - 10/02/17
How long was your barrel? Smoke pole?? And if r17 was good h4350 should be a good choice to ???
Posted By: Tom264 Re: 358/300wsm - 10/02/17
I think you better check with your action first, the Hoosier is based off the .308 (.478") cartridge and of course the .358 wsm or Sambar is based off the .532" cartridge.
You would need to have to bolt face opened up to accommodate that and need to consider the feed rails.
Might be better off looking for a SA magnum action.
Posted By: smokepole Re: 358/300wsm - 10/02/17
24" barrel. I can't remember if I tried 4350. Like 458 said above 2700 fps with a 225 is plenty good.
Posted By: Zackman Re: 358/300wsm - 10/03/17
Yes your right! I did have bolt opened up was going to have a 7mm saum built on it! Was taking a while I got impaiten and went an bought a tikka t3x and McMillan game scout an had the saum built on it. So now I have a magnum bolt 700sa and a .358 barrel. I already have 2 270wsm and a 300 wsm and a 7saum so just looking for something to occupie this stuff! I tried selling barrel! No luck so the wheels started turning that's what got me here!!
Posted By: Tom264 Re: 358/300wsm - 10/03/17
Well that's a good idea.
I have a .358 wssm which I was considering making into a .358 wsm but can't/won't until indiana let's me use whatever rifle I want on public land.
I need it for the special military/state parks hunts.
In the meantime I will use my other rifles on my private land.
Posted By: Kimber7man Re: 358/300wsm - 10/03/17
I have a 358 Hoosier as well, loading with the 180 TTSX, 200 Accubond and 200 Interlock. If Indiana ends up changing the rifle laws permanently, I'll probably just have it reamed out to a standard 358 Winchester. Just a lot of trouble trimming the 358 Win brass down to 1.80"...
Posted By: smokepole Re: 358/300wsm - 10/03/17
Originally Posted by Zackman
Yes your right! I did have bolt opened up was going to have a 7mm saum built on it! Was taking a while I got impaiten and went an bought a tikka t3x and McMillan game scout an had the saum built on it. So now I have a magnum bolt 700sa and a .358 barrel. I already have 2 270wsm and a 300 wsm and a 7saum so just looking for something to occupie this stuff! I tried selling barrel! No luck so the wheels started turning that's what got me here!!



All I'm saying is, don't go chasing extra speed, you won't need it with those bullets. Go for accuracy!
Posted By: Tom264 Re: 358/300wsm - 10/03/17
My 358 wssm shoots the 225 accubond at a hair over 2400 fps and it's lethal on deer big time.
Posted By: Zackman Re: 358/300wsm - 10/04/17
Sooooo 700 sa mag bolt face! My real concern is oal. Can I use the 200 gr nosler ab an 200 or 180 gr Barnes ttsx an seat to 2.800??? An the ogive not be below the case mouth??? Help please anyone here shooting one or loading these bullets in one help before I tell my smith to hit it with the reamer!!
Posted By: smokepole Re: 358/300wsm - 10/04/17
If you have a WSM case trimmed to the right length you can line up the 200 AB and eyeball it easily enough. I don't have any of those bullets but my loaded rounds with the 225 partition are 2.910 OAL and the partition has about 0.150" of the bearing surface outside the case mouth so those would work.
Posted By: Zackman Re: 358/300wsm - 10/04/17
Sooooo 700 sa mag bolt face! My real concern is oal. Can I use the 200 gr nosler ab an 200 or 180 gr Barnes ttsx an seat to 2.800??? An the ogive not be below the case mouth??? Help please anyone here shooting one or loading these bullets in one help before I tell my smith to hit it with the reamer!!
Posted By: 458 Lott Re: 358/300wsm - 10/04/17
Buy a box of bullets and seat one to see if it works.
Posted By: Zackman Re: 358/300wsm - 10/04/17
I have bullets just no dies I don't want to spend 200$ on dies if this combo don't work I'm going a different route!!
Posted By: Zackman Re: 358/300wsm - 10/04/17
One more question what is case length of a necked up 300wsm case after size and fire!?
Posted By: smokepole Re: 358/300wsm - 10/04/17
Like I said, get a WSM case, line up the bullet next to the case, and eyeball it. That's an uncommon wildcat and the chances of anyone here using the specific bullet you're interested in are slim.
Posted By: smokepole Re: 358/300wsm - 10/04/17
Originally Posted by Zackman
One more question what is case length of a necked up 300wsm case after size and fire!?

Same as the 300 WSM.
Posted By: smokepole Re: 358/300wsm - 10/04/17
Originally Posted by smokepole
Like I said, get a WSM case, line up the bullet next to the case, and eyeball it. That's an uncommon wildcat and the chances of anyone here using the specific bullet you're interested in are slim.


Or send me a bullet and I'll seat one in a formed case. Send a PM if you want to do that.
Posted By: Bugger Re: 358/300wsm - 10/04/17
250 grain Hornady Interlocks
Posted By: Zackman Re: 358/300wsm - 10/04/17
It doesn't loose any length after necking up ??
Posted By: 458 Lott Re: 358/300wsm - 10/04/17
It will shorten slightly. BTW, you don't need 350 wsm dies to make up a dummy. I made one up using a tapered expander and I think I used a 357 mag die to seat the bullet. There are quite a few ways to bang out a dummy if you can live with something that isn't perfectly concentric.
Posted By: Tom264 Re: 358/300wsm - 10/04/17
Originally Posted by 458 Lott
It will shorten slightly. BTW, you don't need 350 wsm dies to make up a dummy. I made one up using a tapered expander and I think I used a 357 mag die to seat the bullet. There are quite a few ways to bang out a dummy if you can live with something that isn't perfectly concentric.

Exactly what I did.
👍🏼
Posted By: oldpinecricker Re: 358/300wsm - 10/06/17
I'd dearly like to see an 358 wsm in action and I'd like to try it, but I don't know if it's worth the effort. My reason is I already have an new in box Ruger 338 RCM I've yet to try that only cost me $499. As much as I would like to try an 358 I'm not certain it does anything that my 338 RCM can't do as well.

It very well may be I've got it covered already with the 338 RCM and my two 348 win leverguns.
Posted By: smokepole Re: 358/300wsm - 10/06/17
AFter I built my 358 wsm, I was wishing Id gone with a .338. Better selection of bullets.
Posted By: Tom264 Re: 358/300wsm - 10/06/17
Originally Posted by smokepole
AFter I built my 358 wsm, I was wishing Id gone with a .338. Better selection of bullets.


Agreed
Posted By: beretzs Re: 358/300wsm - 10/08/17
I’ve got a 350 Rem Mag in a 660. I have to seat the 180 TTSXs really deep to function in the short magazine. I’m not sure if wanna mess with a 700 SA. A Winchester SA on the other hand would be excellent and give you lots more latitude for a few different Bullets. Just my opinion though.
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