No, it isn't...
Why didn't 'Pryor' examine the 14 spent cartridge casings (MDF/100) which were originally part of the 'batch of crime scene ammunition', spent cartridge casings which were phased out only to be 'replaced' by 14 bullet cases, from 'unofficial test firings of .22 ammunition', via the anshuzt rifle, on occasions prior to the 20th September, 1985...
Let's get the facts right, so that there is 'nowhere to hide' for anyone who is professing to be telling the truth. According to the ballistic experts testimony, he carried out 'official test firing' of 'control ammunition' using the 'anshuzt rifle', on three key dates. Allow me to state what those three dates were, (1) 20th September, 1985, (2) 25th September, 1985, and (3) 2nd October, 1985...
Now, go to the 'individual, General Examination Records' pertaining to each of the 25 bullet casings...
You will there find, ' confirmation' that there had been 'an earlier test fire', prior to the 20th September, 1985, which involved 'comparison tests' being carried out, using 'test fired' ammunition, on the following dates, (1) 12th September, 1985, (2) 13th September, 1985, (3) 18th September, 1985, and (4) 19th September 1985...
On all these occasions, comparison tests were 'performed' using control ammunition test fired in the anshuzt rifle, on a date prior to the 20th September, 1985. Once you substitute 14 of the original bullet cases that were loaded, and fired via Anthony Pargeters .22 'Bruno, bolt action rifle', with spent cartridges that had been loafed into the anshuzt rifle and test fired on an occasion before the 20th September, 1985, you were always going to get confirmation that the 'substituted' bullet casings had been loaded and fired in the anshuzt rifle, because to be blunt, ' they had been'. But, what about the ' original 14 bullet casings (MDF/100), that had been loaded into Anthony Pargeters .22 Bruno rifle and fired during the killing spree?
Pryor never conducted 'tests' on those...