What Jacob finally came up with was a very elaborate and expensive percussion double-barreled rifle of 32 bore (0.524 caliber.) The barrels measured 24 inches and the gun’s overall length was ...

Starting in the late 1980s, the Navy Arms company imported a few lots of .32 and .41 rimfire made by CBC of Brazil, but by 2009 CBC production of the big-bore rimfires had also ended.