Law is just a deal to shorten ranges bullets carry for safety in crowded areas.
The Gras in the picture is 16ga, and they even made a 12ga. They also in 1880s coverted the original 11mm to 8mm Lebel. Guy wants to see what is possible with the 585.
The 585HI would be perfect for Nosin Nagant. There are a million of them. And there plenty of cases to make them from. Would work in all the short actions that are the vogue now, get rid of the small bore junk...Ed