In an Internet First, Bloke takes his shiny new hundred year and extremely rare old private-purchase Schmidt-Rubin 1889/96 to the range, and actually manages to find some 7.5x53.5mm GP90/03 that goes bang! Well, click-bang, anyway. And only about 3 of them... But anyway, he does it all the same. And doesn't think that anyone's ever done this on the Intartubes until now. So there you go.

Oh yes, and the obligatory mention that GP90 and GP90/03 is SMOKELESS. Not semismokeless. Not blackpowder.