I have seen a few rookrifles and 410s rebarreled/ relined for this cartridge. It is indded a funny little cartridge. It is a lowpressure cartridge, designed to give "new life" for fadedout kipplaufers(breakaction) + could still keep the requirements for european huntinglaws. It is a true roebuck caliber.

It could be interesting to find a sound 410 action, and have a double made.