I claim no special expertise on firearms or ballistics, but if expertise is a prerequisite for discussion then one could speak to very few topics other than those directly experienced. Never played in the NFL? Better not critique that play call in the Super Bowl!
I can see with my own eyes that the conditions at the site were not as difficult as advertised. I can read that multiple experts matched Oswald’s shots in tests. I can view photos showing that the “pristine bullet” was not pristine.
Even if Oswald got incredibly lucky it wouldn’t be “proof” it didn’t happen. I could cite for you multiple events in my life that happened spontaneously which could not be repeated if attempted a thousand times. That doesn’t mean they didn’t happen that one time.
Fair enough, most what compels me to believe in a conspiracy is historical evidence, rather that just the forensics. I think Oswald was a managed asset, and LBJ had the most to benefit from Kennedy’s death. The fact that Trump reneged on releasing the files says a lot to me. I was always a lone gunman believer, but not anymore.