Hi,

I was reading an article about double rifles recently, and in the caliber section the classic .425WR was mentioned as potent choice.
Taylor, too, wrote that he would have been more than happy with two guns: a bolt in .425WR and a double similarly chambered.

Now, we all know that the flanged (rimmed) cartridges are the best option for doubles due to easy extraction. If the case is not rimmed, then extraction can be a problem and many a device has been introduced to overcome this problem.
Furthermore, the rebated rim seems to be a difficult design even in a bolt gun, and thus it occurred to me how bad a solution a cartridge with a rebated rim would actually be in a double?

It appears to me that the rebated rim would have all the same downsides as a non-rimmed case has times two, as even some sort of spring-operated "nail" would have to come high up, indeed, to catch the rebated rim.

Any views/comments/experiences?
I'd love to see a photo of the extractor or ejector of a double chambered in a rebated rim cartridge.
Also, Taylor wrote that WR's patented extractor claw for the non-rimmed is every bit as good and reliable as the solutions for a rimmed cartridge. Does anyone have a photo of said WR system?