[Woodworker]

Bad news in a way; a quick Google turned up Markov barrels in 9X18mm (std. Markov); 32NAA (380 case necked down to fit a .32 bullet http://makarov.com/32naa/ ), and .380 (9X17mm). Doubtless a creative person could devise other conversion barrels, and it's sometimes possible to chamber one of the shorter 9mm family cartridges (9X23mm Largo, 9X23mm Steyer 9X22mm Japanese Type 26, 9X19mm Luger, 9X17mm 380Auto) in a gun designed for a longer one.

Some "authorities" use firearms records to "solve" crimes, because it's easier and safer. For example, you're unlikely to meet real bad guys, because they operate without leaving a paper trail.

[FreedomCalls]

Some "authorities" use firearms records to "solve" crimes, because it's easier and safer.

It doesn't seem to me to be very "easy" (or very efficient for that matter) to seize every rebarrelled Marakrov in the nation in order to solve a single murder no matter how heinous. How many man-hours have been spent on this that could have been spent on other more pressing crimes?