I have one idea, maybe not a big one.
I heard that several burrels can be made from one
metal long "tube" which is already having riflings on
it's canal surface (the tube is cut to several
fragments, depending on length of barrels that has to
I wonder, is it possible that barrels made from such
one "tube" would have the same, or almost the same
"individual" characteristics, for their canals where
worked up by the same instruments?
It is possible to check this by comparing the bullets
fired from the guns with barrels made from one "tube".
This sort of investigation can help, by my opinion, to
avoid possible wrong matches.
I'm from Belarus, and in my country it's extreemly difficult to examine such a possibility, because there are no firearm manufacturers here.
Sorry for my poor English, I'm composing english
letter for the first time.
Maybe it'll go better with more practice.
A little bit about me: I'm from Grodno, Belarus, my
speciality is a forensic expert (in our country it is
called "expert-criminalist") , I'm working at the
Criminalistics Center of Grodno Police Department
You can answer to my e-mail: firstname.lastname@example.org
if you like.
With my respect, Maxim Yasko.