Limitations Of The NAA

Claim: Nobody can say what the bulk homogeneity of bullet CE 399 is.
Response: True, because there is no such thing as bulk homogeneity in WCC/MC lead. There are zones of higher and lower concentrations of antimony.

Claim: Elemental analysis will never resolve how many bullets were fired at the president.
Response: True, but we have never said it would. We speak only of the number of bullets that hit.

Claim: NAA cannot differentiate WCC bullets from SMI from Norma from Peters (presumably all soft leads).
Response: Maybe true, but irrelevant. The Sturdivan statistical treatment takes care of this.

Claim: A standard deviation of 45% in Sb over a bullet will prevent us from matching fragments from it.
Response: False. It all depends where the variations are found.

Claim: If a fragment has the same concentration of antimony as the tip of one bullet and the base of another bullet, you can't tell which it came from.
Response: True, but irrelevant to the JFK scenario.

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