Why do I think I want a .350 Rigby Magnum??...

9.3mauser

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…Especially since I already have a 9.3x62.

I first learned about this cartridge in Pondoro Taylors African Rifles & Cartridges many years ago, and I’ve had a bit of a fascination with it ever since, though I’m hard pressed to say exactly why.

This should have been a much more popular cartridge, but it’s had a few things going against it right from the start. The first problem is that light for calibre bullet. The original loading was a 225 gr. semi-spitzer or solid at an advertised 2660 fps. It would have been much better, I think, to have used the 310 gr. bullet from the original .400/.350 and just increased the velocity to 2,350 or so. The other problem was that it was kept as a proprietary cartridge, and the only place to get rifles or ammo was from Rigby’s. The final nail in the coffin came in the late ‘50’s when Kenya instituted minimum calibre laws, and .350 wasn’t it. Shortly after that Kynoch abdicated their responsibility to thousands of hunters and ceased manufacture of centrefire rifle ammunition. So the cartridge went from being not too common, to downright scarce. Many Rigby .350 Mausers were re-bored and re-chambered to .375 H&H.

In appearance, the .350 looks for all the world like a miniature .416 Rigby, though the reverse is actually true. The .416 is really an enlarged .350, coming out four years after the .350. It was always somewhat underloaded as many British cartridges of the period were. Performance has been compared to that of the .35 Whelen, a much smaller case. But when you look at that long, lean cartridge, it just seems to have so much potential. And that .35 calibre bullet just looks right.

Cases can be made by laboriously turning the belts off of .375 H&H brass, running them through a sizing die and trimming to length. Most ( not all) original .350 Rigby’s were built on magnum Mauser actions. A standard action would work if it was opened up internally as it is for the .375 & .300 magnums. If loaded to the same pressures as any other modern cartridge, performance should rival or exceed that of the .358 Norma Magnum. Load data is as scarce as the rifles, probably because the owners of the original rifles lock them away in vaults rather than take them hunting.

I picked up a set of dies at a gun show a few years ago, just on a whim, and a made up a couple of cases just on an experimental basis. But original Rigby rifles are just completely out or reach financially. So the only options for owning one are to get an existing rifle re-barreled, or start a custom project.

My 9.3mm is nearing completion, my 7x57 had better be complete this year, and the last thing I want is to start another custom project. It would mean finding a donor Mauser, getting a barrel, having it turned and chambered (plus I’d have to buy my smith a reamer), get the sights fitted, figure out what I’m going to do about a scope, get a new magazine box, get the internal alterations sorted out, find a nice piece of lumber and get it carved into a gunstock, cajole my gunsmith into taking on the project and hope I live long enough to see it completed.

It would be easier and cheaper to just stick to the 9.3mm or get a pre-64 M70 in .338, and use all the money I’d save to actually go hunting.

BUT I STILL WANT A .350 RIGBY!!!


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Left, a .338 Winchester Mag, centre the .350 Rigby, right, 9.3x62

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Experiments in case forming; centre one was chucked into a drill press and the belt removed with a fine tooth file. Right one was much more neatly done in my case trimmer. A miniature lathe would be ideal, just don't happen to have one.
 
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Sounds like an interesting project for sure. I'd go for it if I were you. You already have the dies. That's one expense out of the way. You'd end up with a pretty unique rifle in an uncommon cartridge.
 
Find yourself a used Parker Hale 300 win mag or 7mm rem mag in the equiptment exchange here on gunnutz for the donor action,that's what i'm doing for my build,then you just have to worry about the barrel and chambering.Look up Ron Smith in Wimborne Alberta for a barrel, or if you have a barrel with a smaller bore that is heavy enough he also does re-boring,i'm a repeat customer of his,he does nice work.
Dean
 
That looks like my kind of fun. A modern 350 Rigby! If you had some spare 340Wby brass it looks like some trimming and shaving. Some brass prices are crazy but I guess they might sell a few hundred a year so it's expected. I bought some Quality Cartridge brass for $120/20 and none of it worked. It had cracks in the brass from new and would not chamber in my gun. They would replace the ones that were cracked but it was more to ship than it was worth. The ones that look good are so soft I can only use them with mild trailboss loads as they stick in the gun and have to be tapped out. Sorry to side track.
 
I looked into it about a year ago. I ended up deciding that it was just too much hassle and expense. Still really cool though.
 
Exactly. It could be a fun build that would produce a unique rifle. On a Mauser 98 action of course.

Bertram make brass. Only $232.50 per 20!!!

It is $95.99/20 out of Midway USA. I suspect that it will be nowhwere near $232.50 by the time it arrives here.

Two other neat medium bore rifles are the .318 Westley-Richards and the .333 Jeffery Rimless. Woodleigh makes bullets for both of them. You can make .318 W-R brass from .30-06 brass. They would also fit quite well in the M98 action.

Here is some reading material:
http://huntnetwork.net/modules/wfsection/html/Ahthe .318 Westley Richards Perspectives.pdf
 
It is $95.99/20 out of Midway USA. I suspect that it will be nowhwere near $232.50 by the time it arrives here.

Two other neat medium bore rifles are the .318 Westley-Richards and the .333 Jeffery Rimless. Woodleigh makes bullets for both of them. You can make .318 W-R brass from .30-06 brass. They would also fit quite well in the M98 action.

Here is some reading material:
http://huntnetwork.net/modules/wfsection/html/Ahthe .318 Westley Richards Perspectives.pdf

Whoops. I erred. The price I quoted was $232.50 per 50 cases
 
Exactly. It could be a fun build that would produce a unique rifle. On a Mauser 98 action of course.

Bertram make brass. Only $232.50 per 50!!!

That's expensive for GARBAGE brass. I would never buy Bertram again, the stuff I bought in 425 WR I had to swage the primer pockets. To do have to do this with brass I paid $85/20 is ludicrous.
 
Two other neat medium bore rifles are the .318 Westley-Richards and the .333 Jeffery Rimless. Woodleigh makes bullets for both of them. You can make .318 W-R brass from .30-06 brass. They would also fit quite well in the M98 action.

I like the .318 too, but the issue I have with those two cartridges is that Woodleigh is the only one that makes bullets for them. If your rifle doesn't shoot well with Woodleighs, you're S.O.L. The gunmaker that's working on my 7x57 once offered to build a .318 for me. One of his gunsmith friends in England apparantly has a few barrels still kicking around.
 
I like the .318 too, but the issue I have with those two cartridges is that Woodleigh is the only one that makes bullets for them. If your rifle doesn't shoot well with Woodleighs, you're S.O.L. The gunmaker that's working on my 7x57 once offered to build a .318 for me. One of his gunsmith friends in England apparantly has a few barrels still kicking around.

Woodleigh makes a good bullet. I think that if you use a good quality barrel, with an appropriate twist rate, put together by a good gunsmith, you will be golden. There is no reason that such a rifle would not give you hunting accuracy....or better.
 
About ten years ago i reading everthing I could on the 318 WR, 350 Rigby, 416 Rigby, alot of use was in the African trade! The 318 WR was my favorite, but bullets are and still are the problem with the cartridge. Now the 350 Rigby was the rifle I wanted to find, but no luck, so I went and built the next best thing a 35 Whelan. A great cartridge for sure but sure no 350 Rigby, i see no way that the WHelan equals the big 350 in foot pounds and raw energy? If I was to build one now, since it is a Rigby Case, CZ sells there magnum 550 action with a Rigby Bolt face, and barrels are easy to find , a project that 10 years ago was not as feasable as money goes, Pacific Tool & Die makes a reamer, just need to find dies and brass! Like others say the bertram brass is overpriced for the money, my 35 WCF brass has all off centre primer holes and are quite tight!

Another alternative is to neck up the 340 Watherby to 35 cal?

good luck and keep dreaming ,cause when you stop you almost dead!

cheers dale Z!
 
It is $95.99/20 out of Midway USA. I suspect that it will be nowhwere near $232.50 by the time it arrives here.

Two other neat medium bore rifles are the .318 Westley-Richards and the .333 Jeffery Rimless. Woodleigh makes bullets for both of them. You can make .318 W-R brass from .30-06 brass. They would also fit quite well in the M98 action.

Here is some reading material:
http://huntnetwork.net/modules/wfsection/html/Ahthe .318 Westley Richards Perspectives.pdf



Midway? How the hell do you order anything from midway? I've tried and always been told they will not ship to Canada.
 
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