Royale Mags fit Crown?

I saw this somewhere and got Jimmy King (Jking) to try it out as he has both. These are his remarks "It does fit but it doesn’t utilize all the surface area on the bottom side to support it 100% but good enough though. Perfect fit as far as width and with it being smaller and angling down more a guy could go with lower scope mounts if preferred."

Just something I thought was interesting and something you can use in a pinch or if you have them laying around anyways. He tried the .25 Calibers the others I'm not sure but probably the same.
 
Just for giggles I used my Royale .25 magazines in my Impact today...while I wait for Impact .25 magazines to be in stock again, and they worked just fine. I have read elsewhere that they will wear out the tiny O ring on the outside of the magazine and then they will be too loose in the Royale. Since I have 4 magazines for the Royale and plan to sell it soon, that's fine with me.