Marrakai,

Let me relieve some of the suspense.

I think the 30R Blaser is a good candidate for conversion to .400/.360 Westley Richards. The size at the head is really close, the rim isn't too large, and it's only about 0.050" short of the nominal length of the WR cartridge.

This idea developed from studying dimension data from Cartridges of the World, and it may not work at all. I don't yet have the .400/.360 WR in hand, but should have it today. Further, I've never laid eyes on a 30R Blaser case. I'll know more about the Westley after a chamber cast and bore slug.

Huntington lists RWS cases in 30R Blaser a damn sight cheaper than their Bertram in .400/.360 WR. So far I'm not impressed with Bertram's fidelity to dimensions. If the RWS will work, that's going to be my mainstay.

I won't be using an ultra-modern bullet zipper. It's a pure-blood Westley Richards Farquharson (take-down model) made in 1897:

Now you know as much as I know about this project. I haven't seen the rifle yet, only the pictures. Today it will come on a brown truck, and I'll either be delighted or non-plussed. I think it's a peach. Not a double this time, but surely a Pommie classic!

In the meantime, your vast knowledge of loading and cartridge adaptation would be welcome. Maybe you already have a solution for the .400/.360 WR.

Best regards,
Curl