Having a clear out and thought this might help somebody before it goes in the bin.
Somewhere between thirty and forty years ago I bought a Rigby 350 Magnum.
Came with ten factory rounds.
Couldn't get any new cases at the time so decided to make them from 375 H/H
If I can manage again to post a picture here this is what I did.
Success,
I am not a machinist so had to get a machine shop to take off the band and every thing worked ok.
RCBS made some re-loading dies from a couple of fired cases I sent them, loaded up and tied the rifle to a post with a Bungy cord for the first firing.
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Here's my .350 Rigby Magnum, created by Lon Paul, using an original Rigby slant box, stepped receiver ring Mauser action and an original Rigby Mauser stock.

An original box of Factory cartridges




m4220

So what did Paul do?

Well, he fitted and chambered the barrel, fitted the sights, fitted the sling loops, blued the barreled action, refinished the stock, and sighted the assembled rifle in. Other than that, nothing.

Lon Paul does great work, Rigby 350 Magnum is a very good cartridge that was very popular in Africa, and the data showing the ease with which .375 cases can be used is a good service. Good on everybody.
Mike

So, he actually did more than Rigby.....(or Jeffery, etc, etc!!)

Thanks for clarification. Both Paul and Rigby deserve credit for a fine rifle!

I suspect I should have posted this "before" photo, taken of the action with an original Rigby barrel screwed partially into the receiver and the stock in the condition in which it was received.

Thanks xausa that tells the story much more clearly~~
Can also see the stepped receiver.

James Tucker once told me about an English shotgun stock so dark you couldn't see the 1" butt extension until the grime was removed.

My 350 Rigby was not a pleasant rifle to shoot which probably explains why most of these large calibres have generally survived in good condition.
Especially the ones that had stayed in England and had not been taken out into the bush.
From memory the one I had was made in 1912 and was in good condition except after I had fired about a hundred rounds through it over the years I noticed a crack had started in the wood between the magazine well and the trigger.
I sold it to Rigby's in London around twenty or so years ago who were keen to buy it and from what I was told It would appear that this is quite common in these hard recoiling rifles.

Beautiful rifle, and a caliber much appreciated by Pondoro Taylor.

Yep, looks pretty much the same as the finished product.