Mr. Eisenberg. Are you familiar with all of those?
Mr. Nicol. Yes; I have seen and examined all of these.
Mr. Eisenberg. Did you examine Exhibits 602 through 605 to determine whether they have been fired from the same weapon as fired 606?
Mr. Nicol. Yes; I did.
Mr. Eisenberg. What was your conclusion?
Mr. Nicol. Due to mutilation, I was not able to determine whether 605, 604, and 602 were fired in the same weapon. There were similarity of class characteristics—that is to say, there is nothing evident that would exclude the weapon. However, due to mutilation and apparent variance between the size of the barrel and the size of the projectile, the reproduction of individual characteristics was not good, and therefore I was unable to arrive at a conclusion beyond that of saying that the few lines that were found would indicate a modest possibility. But I would not by any means say that I could be positive.
However, on specimen 602—I'm sorry—603, which I have designated as Q-502, I found sufficient individual characteristics to lead me to the conclusion that that projectile was fired in the same weapon that fired the projectiles in 606.
Mr. Eisenberg. That is to the exclusion of all other weapons?
Mr. Nicol. Yes, sir.
Mr. Eisenberg. By the way, on the cartridge cases, that was also to the exclusion of all other weapons?