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Discussion Starter #1
I bought one of Grices 7600 in 35 Rem. a few months ago with the Idea to send to Gander Mt. to be rechamberd in 358 win. My conceren is how will the 1 in 16 twist shoot in 358 win. . Winchester shows a 1 in 12 twist for the 358. Help :?
 

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Remington uses the 1 in 16 rate for the .350 Rem mag too. The velocity for the .358 Win will be between the two so I'd go for it.
 

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The 1:16" twist .358 will handle 200/220-grain bullets just fine; my 14" Contender in .35 Remington shoots the 250 Speer spitzers very accurately out to 200 meters. But most commercial 250-grain bullets really shouldn't be used in this little case, IMO. They are designed for the higher velocities of the .35 Whelen, etc. and some are a bit too tough for the .358 WCF, as Nosler states in their #4 Manual.
 

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Discussion Starter #4
Thanks for the help guys, I thought it would work with the lighter bullets anyway , but I guess I really wanted to hear it from somebody else before I sent a new rifle to be worked on. Now I'll only worry about the kind of work Gander MT does when it comes to gunsmithing. Has anyone had any experience with them. And thanks again for the advice. :)
 

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I'm watching this thread closely, as a 7600 358 Win is a dream gun of mine. Whatever happens, keep the updates coming... DL
 

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Discussion Starter #6
DLuke, I Talked to SSK industries today and they said they could do the job for around $125.00 for the rechambering. Said just pack it up send it by UPS and include all the work i want done . It will be on its way by the end of the week ,i"ll let you know how it goes.
 

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Discussion Starter #8
I'm not sure, but the bolt face may have to be enlarged. There is about .013 difference in dia. of the rims. When i have talked to people about this conversion most say that rechambering is all that needs to be done. I guess i'll know when I get the bill.
 

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Discussion Starter #9
I sent my rifle off to SSK on the 6th they emailed me they had received it on the 8th then on the 11th say it was ready . they rechambered polished the bolt face ,at my request , restamped the barrel and had it on its way by the 12th. Should be here by end of week,That is SERVICE! Can"t wait, well guess i have to brass hasn't come in yet. OH yea ,cost was 175.00.I'll let all know how it shoot when i get it to the range.
 

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Doetag,

Your custom .358 sounds real nice. Do keep us posted on how it shoots. Sounds like SSK has a fantastic turnaround time.

FWIW, I believe when Ruger chambered the old tang safety M77s for .358 they used 1:16 twist. Browning uses 1:12 for the BLR .358.
 

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Discussion Starter #11
Well got my rifle back ,got it scoped and hit the bench. I really like the way it shoots. My groups averaged just under 2" But all i had to load with was H335, was wondering if anyone out there has loaded for this round and if so whats a good powder.I am shooting 180 sspb and 225 ballistic tips
 

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The .358 winchester makes a lot of sense in that action, particularly if mated to the carbine length barrel. The action is long enough to accomodate 06 length cartridges so you have plenty of room to play with bullet seating depth.

I am sure the 1:16" twist will work in the bullet weights that the .358 best suited for.

I do have a question for you.

I am not real familiar with the act of rechambering a rifle. Was SSK able to do the reaming job with the barrel still on the receiver or did they have to remove it and then refit it?

Rummer
 

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doetag:

I don't know how your rifle is set up, but the magazine is probably a .308 length one, and if the throat is set up normally for a .358, you may find the 225 grain NBT's may be prone to under-perform in it.

They are a very long bullet with their VLD profile. I tried them out in my BLR, and found that in order to get them to fit in and feed from the magazine I had to seat them quite deeply in the case. This reduced the amount of powder I could use to load them with.

I understand that Hornady makes a 220 grain bullet that is much shorter and more user friendly than the NBT. I've begun swaging my own bullets, so this isn't a problem for me.

I haven't tried it yet, but I understand that H335 is an excellent powder for the .358.
 

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.358WCF

I have a 7600 in 35 Whelen so I have no 358 WCF experience here on pumps. But I have a Savage 99A brush gun and Lone Eagle pistol both in .358 WCF. Both have a 1 in 12 twist rate. In the rifle I use 200 gr bulk Remington bullets in both RN and protected point. I keep buying more bullets than I can shoot so I have a good supply. I have used Hodgdon's Varget exclusively since I tried it. I have shot from the 200 gr to a 280 gr WLN cast from Mt Baldy. The only exception was a few early loads for the Lone Eagle with the Nosler 225 gr Ballistic Tip and BLC(2). For a squirrel load try a 10 gr charge of Red Dot with magnum primer, 148 gr HBWC swaged of pure lead, and dryer lint on top of the powder. Little noise and effective on careful shots at small game. Have fun. 'Dito
 
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