[PhilDragoo]

Phil, do you have any evidence that the gun alledged to have been removed from the TSBD was tested for having been fired that day? I have heard that it was not and that the WC has no record of that being done. If there is no record I am assuming that means that it WAS done and found to have NOT been fired. It is almost inconceivable that such a standard test would not have been done.

Sylvia Meagher, Accessories After the Fact: The Warren Commission, The Authorities & The Report, Vintage/Random House 1967/1976, page 120:

Neither Day nor any other police officer seems to have checked the rifle when it was discovered for signs--such as traces of fresh gunpowder inside the barrel--indicating that the weapon had actually been fired that day; FBI Expert Robert Frazier, who examined the rifle early the next morning, when asked if there was metal fouling in the barrel, replied, "I did not examinie it for that." [3H 395]

[Shooter 2.5]

-indicating that the weapon had actually been fired that day;

No such test exists. There are only indicators that show that a gun has been fired.