Not withstanding your claim of "I seldom repeat what others of (sic) said..." you simply referred me to what others have written. Your claim of "I do original research...." does not ring true.
Your statement, "Getting oil on bullets doesn’t seem to affect the primers...." seems to be another instance of the ignorant referring to cartridges as "bullets".
As to "waterproof brass case" please explain why all ammunition produced by and for the military is required to incorporate sealant at the bullet/shellcase juncture and also at the primer/shellcase juncture.
It is expected that contributors to this forum clearly identify writing that is "opinion" versus hard fact. You have crossed the line and made statements that are flatly not true and could have negative consequences for even less informed folks.
Again, conduct the oil on or in primers experiment and report back (with an apology).
KMA I have destroyed primers with WD-40 which is why I brought it up in the first place. Plus, you need therapy for the tightness of your sphincter.