Your understanding of "dry firing" and Nicol's are different. Nicol explained that dry firing is simply working the bullets from the clip through the chamber and unloading without pressing the trigger. There is evidence that Oswald did this. That was Nicol's explanation of why there appeared to be markings on the shell indicating that it had been put through the load/unload process at least 3 times. But he also said that it had been fired in the chamber based on the bolt-face impression on CE543.
So we are supposed to ignore the 130+ witnesses who maintained there were 3 shots? Why? Just because some people weren't counting the shots? There are too many who independently reported hearing 3 shots. Are we also supposed to speculate that the 45+ who recalled the last two shots closer together were independently imagining the same thing?
Actually this explains a lot. You would have to be a complete imbecile to perform some imaginary type of practice by cycling live rounds through a rifle with the bolt cocked and ready to fire, and additionally this is not dryfiring. Nicol was explaining the weight of an empty shell, the extractor marks and dryfiring not cycling the shells through the chamber. That is all you.
Mr. EISENBERG. Now, is it possible that the reason the marks were present on this cartridge but not on the other cartridge case on this cartridge case but not on the other cartridge cases you examined--is because these marks were produced by dry firing as opposed to actual firing?
Mr. NICOL. This is possible. The weight of the empty shell would be different of course from one which had a projectile in it, so that its dynamics might be different, and it might produce a different mark-- although in the absence of accessibility of the weapon, or the absence of these marks on the tests, I really am unable to say what is the precise origin of those marks, except to speculate that they are probably from the extractor, and that the second mark that appears here, which I have indicated with a similar number, is probably an ejector mark. Now, this, I might add, is a different type of ejector mark than the mark found on the rim from the normal firing of these tests and the evidence cartridges.
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Ignore whatever you want, but do not ignore the fact the HSCA basically dismissed their own report that you place such great faith in.
This is what the HSCA thought of their own report that you are always referencing as supposedly above reproach. The very report that you place such great emphasis on. They are telling you that over time the witnesses added to their statements information that was taken from media accounts. They thought the witnesses added to the number of shots. Not just once but in two different reports. If the HSCA did not believe their own report why do you?
"'While recognizing the substantial number
of people who reported shots originating from the knoll the committee
also believed the process of collecting witness testimony was such
that it would be unwise to place substantial reliance upon it. The
witnesses were interviewed over a substantial period of time some of
them several days even weeks after the assassination By that time
numerous accounts of the number and direction of the shots had been
published. The committee believed that the witnesses memories and
testimony on the number, direction, and timing of the shots may have
been substantially influenced by the intervening publicity concern
ing the events of November 22 1963" HSCA Final Report- pg 87
"The buildings around the Plaza caused strong reverberations
or echoes that followed the initial sound by from 0.5 to 1.5 sec.
While these reflections caused no confusion to our listeners
who were prepared and expected to hear them they may well
inflated the number of shots reported by the suprised witnesses
during the assassination" HSCA Earwitness Analysis Report, pgs 135-137