I am a law enforcement officer who is currently working a case that envolves a stolen firearm.  Evidence that I do have is a 25-06 Remington round recovered from a suspects residence via a search warrant, but not the firearm.  The victim has the box of the 25-06 Remington ammo where the suspected round came from.  The round recovered from the suspects residence has been loaded into a rifle and removed previously without being discharged.  The 25-06 Remington ammo the victim still has may have also been loaded into the same firearm and returned to the box without being dischaged. 

The 2 questions I have are:

1. Is it possible to identify the round recovered from the suspects house as being loaded into the same firearm compaired to the rounds recovered from the victims house even if neither of the rounds have been discharged?

2.  Is it possible to identify the 2 comparible rounds came from the same box of ammo? And to what degree? 

Thank you in advance.

deputy3541

1) Possibly . . . if marks of comparable value are present.

2) No.

CMC

Thank you.

1. Look for extractor marks and maybe the ejector marks will be 
    present.
    Offcourse you should look for all any other marks.
2. You may have a small chance if the ammunition is special. I.e, if it
   is made in small batches. In that case try to get information from
   the manufacturer about numbers, how many machines involved in
   the production and any thing which will help you to determine how
   much is that ammunition unique.