358 shooting times western

brybenn

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Does anyone have such a beast? I was researching the smaller faster 257stw when I stumbled upon this creation. Couldn't find any load data or anything much else on it other then its a necked up 7mm stw. What action would be the best donor for such a cannon. I read a 250gr bullet can reach 3000fps. Would that be true? Altho I'd prefer a 35 whelen for hunting a 358 stw would really shut the guys in hunt camp up when they argue what's bigger the 300wm or the 338wm.
 
Never heard of a 358 STW. I do know the 358 Shooting Times Alaskan (I think you're referring to this). 8mm RM necked up to .35 cal. 300gr bullets at 2700 FPS. All the fun you can handle!

You could build one on a long action CRF Model 70 (magnum bolt face). You can use a 300/338WM as a donor in a M70 by swapping out the mag box and follower for the H&H length one and modifying the ejector, along with a new barrel.
 
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Layne Simpson of Shooting Times in the late eighties necked down and up the 8mm mag case (reduced taper too) to get the 7mm STW and the 358 STA - hence the name confusion by someone I suppose.

The 358 STA should "shut the guys in hunt camp up" but that's a definite maybe. However it will certainly dump BIG game effectively - at very long range. Perhaps that's all you should hope for.:)
 
Yes sorry my mistake. The article was about layne simpson. 358sta not stw. That would definitely be a hell of a moose gun. Maybe someday ill get the magnum bug and look more seriously into it. For now tax return should get me a 35 whelen to fill the gap. Thanks
 
Another cool [old wildcat] 35cal is the 350G&H. Nothing nore than a 375H&H necked down with no other changes.

Betcha it feeds good!

3501.jpg


3502.jpg


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The STA requires a 375 H &H length action, the NM will work through a 30-06 length action. Both good cartridges, the 358 NM is available in factory ammunition, while the STA is a handloading only proposition. - dan

I haven't looked all that hard but not having seen much factory 358NM ammo around, when I saw seven boxes available at a local gun show I thought I had died and gone to heaven:p. In preparation for eventually acquiring the rifle, I snapped it up while the getting was good. In addition, I picked up a 'generous' supply of Norma unprimed brass from Henry at Budget Shooter Supply. I purchased a very nice Husqvarna model 1651 in 358NM from Why not? but eventually I'd still like to get a Schultz & Larsen.
 
Altho I'd prefer a 35 whelen for hunting a 358 stw would really shut the guys in hunt camp up when they argue what's bigger the 300wm or the 338wm.

This might be the ultimate .358 to impress the hunt camp guys. It is the .360 Imperial Mag that I designed in the late 1980's and is pictured below beside the .358 Norma. It's an original Canadian design and outperforms all .358 commercial production cases as well as the Wildcat .358 STA. The Imperial drives a 250gr bullet at 3,075 fps. Following shows the case capacities in grains of water;
.358 Norma = 122 grs
.358 STA = 128 grs
.360 Imperial = 149 grs.
360358NORMAJPG.jpg
 
This might be the ultimate .358 to impress the hunt camp guys. It is the .360 Imperial Mag that I designed in the late 1980's and is pictured below beside the .358 Norma. It's an original Canadian design and outperforms all .358 commercial production cases as well as the Wildcat .358 STA. The Imperial drives a 250gr bullet at 3,075 fps. Following shows the case capacities in grains of water;
.358 Norma = 122 grs
.358 STA = 128 grs
.360 Imperial = 149 grs.
360358NORMAJPG.jpg

That definately looks like the 'Big Boy' of the 35's:) and puts the likes of my 358NM in its place. What rifle did you have that brute chambered in? If you still have it, any pictures?:cool:
 
.360 Imperial

Sako did a production run of 85 barreled actions, in 1993, chambered for the 5 Imperial Magnum calibres, 20 of which were .360 Imperials. All were based on the Sako L691 action. This photo shows the prototype we requested before giving them the contract. It is equipped with a McMillan stock. Serial number of this .360 Imperial is IM 000000 There are 20 more of them out there, some of which have been to Africa many times. We also built a number of custom .360 Imperials based mostly on AV, L691 and TRG-S (995) Sako actions, McLennan barrels and McMillan stocks.

Kimber of Oregon was originally given a contract, in 1990, to build Imperial Magnums however we only received one prototype in .360 Imperial before they went into receivership. I believe it was the only Kimber rifle ever produced without the Kimber trademarks. Serial number of that rifle is NASS-0001. It is currently living in a good home in Alberta.
GunsForSale004.jpg
 
sako did a production run of 85 barreled actions, in 1993, chambered for the 5 imperial magnum calibres, 20 of which were .360 imperials. All were based on the sako l691 action. This photo shows the prototype we requested before giving them the contract. It is equipped with a mcmillan stock. Serial number of this .360 imperial is im 000000 there are 20 more of them out there, some of which have been to africa many times. We also built a number of custom .360 imperials based mostly on av, l691 and trg-s (995) sako actions, mclennan barrels and mcmillan stocks.

Kimber of oregon was originally given a contract, in 1990, to build imperial magnums however we only received one prototype in .360 imperial before they went into receivership. I believe it was the only kimber rifle ever produced without the kimber trademarks. Serial number of that rifle is nass-0001. It is currently living in a good home in alberta.
gunsforsale004.jpg

drool!
 
The STA requires a 375 H &H length action, the NM will work through a 30-06 length action. Both good cartridges, the 358 NM is available in factory ammunition, while the STA is a handloading only proposition. - dan


About suitable action one should find that a Remington model 700 magnum action would work fine. I believe the magazine (at least the DM) lets you sit out 3.600" . I used one for an STW conversion.
 
Sako did a production run of 85 barreled actions, in 1993, chambered for the 5 Imperial Magnum calibres, 20 of which were .360 Imperials. All were based on the Sako L691 action. This photo shows the prototype we requested before giving them the contract. It is equipped with a McMillan stock. Serial number of this .360 Imperial is IM 000000 There are 20 more of them out there, some of which have been to Africa many times. We also built a number of custom .360 Imperials based mostly on AV, L691 and TRG-S (995) Sako actions, McLennan barrels and McMillan stocks.

Kimber of Oregon was originally given a contract, in 1990, to build Imperial Magnums however we only received one prototype in .360 Imperial before they went into receivership. I believe it was the only Kimber rifle ever produced without the Kimber trademarks. Serial number of that rifle is NASS-0001. It is currently living in a good home in Alberta.
GunsForSale004.jpg

Thanks for the info. Much appreciated. Part of the reason I asked was at one time I had a Brno ZKK 602 in 458WM and if I remember correctly, that was an action of a length that would've been suitable for your cartridge.
 
Thanks for the info. Much appreciated. Part of the reason I asked was at one time I had a Brno ZKK 602 in 458WM and if I remember correctly, that was an action of a length that would've been suitable for your cartridge.


Standard loaded length for the .360 Imperial cartridge is 3.60". The previous photo of the .360 has the bullet seated out much longer - only to impress the hunt camp boys. Have not worked much with the BRNO 602 magazine but if the length is 3.70" or longer it will handle the .360 Imperial although action rails etc will probably need some work to ensure reliable feeding.

Regards; Aubrey
 
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