Lee Harvey Oswald's Paraffin Casts

http://www.prayer-man.com/lee-harvey-oswalds-paraffin-casts/

“Barium and antimony were found to be present on both surfaces of all the casts and also in residues from the rifle cartridge cases and the revolver cartridge cases. Barium and antimony were found to be present on both surfaces of all the casts and also in residues from the rifle cartridge cases and the revolver cartridge cases.  Since barium and antimony were present in both the rifle and the revolver cartridge cases, their presence on the casts were not evidence that Oswald had fired the rifle.” 

Were Oswald’s cartridge cases for the rifle and revolver recovered? I thought he just had a few rounds for each which he kept lose.

Did they reach a conclusion regarding the firing of the revolver?

Was the jacket recovered under the car at the gas station during the pursuit of Tippit’s killer ever tested? I suppose that it has since been laundered so any traces of nitrates on the sleeve or in the pocket would likely be minimal.

Were Oswald’s cartridge cases for the rifle and revolver recovered? I thought he just had a few rounds for each which he kept lose.

Rifle Cartridge and Cartridge Cases

https://www.archives.gov/research/jfk/warren-commission-report/appendix-10.html#cartridge


Revolver Cartridges and Cartridge Cases
https://www.archives.gov/research/jfk/warren-commission-report/appendix-10.html#revcar


Did they reach a conclusion regarding the firing of the revolver?
Based on the paraffin test? The cops, claimed to yes. 

The WC talked about it here
The Paraffin Test
https://www.archives.gov/research/jfk/warren-commission-report/appendix-10.html#paraffin
 
Was the jacket recovered under the car at the gas station during the pursuit of Tippit’s killer ever tested? I suppose that it has since been laundered so any traces of nitrates on the sleeve or in the pocket would likely be minimal.

No, but it should have been.