The bag was cut open and resealed because the items were fingerprinted.
The rest of your post warrants no response, 25 casings were fired by the Anschutz which means 25 bullets had to have been fired by the Anschutz. 15 of the 25 had rifling marks indicating they were fired by the Anschutz. They didn't have to do any chemical composition tests to figure out the other 10 came from the Anschutz. I already dealt with your ridiculous follow marks nonsense.
Your conspriacy claims have no leg to stand on at all.
Many of the bullet cases which ended up at the lab' had not in fact already been fingerprinted, since not all were found to be coated in the white residue from super glue treatment. These details relating to which indidual cartridge cases had a presence of the all important white residue or not, are recorded in the 25 individual 'GENERAL EXAMINATION RECORDS' completed at the lab' upon arrival / examination of the same. Those cartridge cases without such as a tiny trace of white residue upon them (and as I say, there were many of them) suggests in the clearest possible terms that such cartridge cases cannot have been fingerprinted prior to the arrival at the lab' for the first time. I believe I am right in saying that these non risidual cartridge cases were not the original ones recovered from the scene. It would have been or was relatively easy to swap over cartridge cases belonging to use with a different weapon, than the anshuzt rifle, and simply replace those with test control fired cartridge cases which were later fired in the anshuzt rifle during an unofficial test firing of the anshuzt rifle, parker hale sound moderator, and a batch of .22 ammunition cartridges cases.You would simply only need to remove as many as 14 cartridge cases, keep them separate (MDF/100), and replace them with test fired cartridge cases fired through the anshuzt rifle, and 'hey presto' you end up with, what they ended up with. You end up with some cartridge cases in this batch of crime scene ammunition not having white residue from superglue treatment on them because as many as 14 if them had been switched later to give a general impression that a did afferent gun must have been used during the shootings.In my opinion it is not enough to simply say that because the current batch of cartridge cases had all been fired via the anshuzt rifle, that all of this collection was fired during the shooting incident, because it does not..,