A cyclist pistol

[RomaRana]

Originally Posted by fernando

Hi Bill,
Rimfire allright.
Definite calibre dificult to say, due to the wide variety of small ammo developed at the time.

You could easily determine caliber by doing a chamber cast with Cerrosafe.




http://www.midwayusa.com/eproductpag...eitemid=462291

After you melt the material in the chamber you have an exact replica of the ammuntion used in the gun. You then simply measure the casting and compare it to the measurments in a cartridge handbook.