Got a Parker Hale action with Timney trigger for £60 + RFD fees if its any use to you.
Check out if Lothar Walther can't make you a barrel. M98 chambered and threaded barrels are only around 200 Euro and only need bluing, head spacing. I don't know if they have a 358 though. The sporter weight LW barrel on my 308 Mauser shoots around 3" at 400m.
edi
9.3x62 would be great option for a Mauser. With 250gr accubond, BC 0.494 can be useful from 0 to 500m.
edi
9.3x62 is a cracking calibre but in the UK we have some Home Office Guidelines which, although not written in stone, state '9.3 Mauser' as a dangerous game calibre. Which isn't entirely true as although you could shoot some dangerous game in some parts if the world, in most parts of Africa .375 is the minimum. So although it's far from impossible to get, it's a fight I don't want.
.358 isn't listed in the guidelines and as from the factory it's relatively downloaded it should be allowed and I've been told there shouldn't be any snags with it since it fits between .308 and 30-06 in muzzle energy.
Basically I'm after heavy bullets and this may be the easiest way to do that. 8x57 is great but 30-06 does the same but cheaper.
Perfect world...350 Rem Mag, 358 Norma Mag or 375 h&h and 300 h&h (but that'd be mainly if my local force want me with 30 cal max)
The rifle will be for all stalking in the UK, driven boar abroad, plains game and thin skinned dangerous stuff such as black bear. But I have to base my variation on what I have, not what I plan on.
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.Another excellent choice . I may be wrong , but I'm sure Lothar sells short clambered 98 barrels clambered in 9.3X62 . You would probably have a better selection of 9.3 bullet over there than 358 diameter bullets , they're even a bit scarce here at the moment . You're going to be using a standard length 98 action anyway, it might even feed better with the longer cartridge , and the weight would be the same with either round . It goes without saying that the 9.3X62 is a very capable round and will do anything the 358 will do, and more . Just a thought............. I love building someone else rifle , it's so much cheaper lol .
AB
Many German hunters use the 9.3x62 as an all-round cartridge and seem to think even on roe deer meat damage is not more than with smaller cartridges.
edi
Quite true, the slow heavy bullets destroy much less the the smaller ones that must be driven fast for effect. Although we found the 450gr, 50 caliber bullet I shot to take down a bison last December we could find no trace of the bullet path other than a hole in the hide. Bullet was found on the far side of the spine.
SS
To whet your appetite, here is an original Oberndorf Mauser, standard 98 action, in 9.3x62, factory built in 1937.
It has a very long barrel ( 28 inches ), and a long forend, to put the sling out of the way of your hand, as it would on a barrel banded 23-inch barrel.
I have a similar one in 8x57IS, same year ( 1937), with a 600mm barrel.
View attachment 45201
A .35 Whelen would fit in there very well, too, or a .338-06, 9.3x64mm, or .358 Winchester
I know someone who uses a CZ 550 full stock carbine in 9.3x62mm on small deer, big deer, boar, bears, moose...
The .358 Win would work in a carbine, a 21-inch full stock Mauser 98 with a spoon handle.