Convensional wisdom has it that the only variant made for the danish Snider conversion was the 17,5 mm (.69 caliber) rimfire cartridge shown here:
vaabenhistoriskselskab.dk/ar … ?editid1=4
That variant has a HS that says T, for Tøjhuset, to which the laboratory workshops belonged. My interest starts in 1867 so I know next to nothing about this the oldest danish metallic cartridge.
My question is: Did any other army use a cartridge of this exact size in their breechloading Sniders?
Edit: We are trying to find out if any non-danish rifles used cartridges with these dimensions.