This video clip has a proficient shooter using a bench rest and it takes 10 seconds to aim and fire 3 rounds.
The questions that El Chapo and his cohorts can't answer are where did Oswald develop the proficiency to shoot this particular weapon as alleged. [And please don't bend over and reveal a naked backside by saying the Marine Corps] Another question not answered all these years is what happened to the ammunition for that rifle. None was ever found anywhere that Oswald was.
Don't worry, I'd never bend over with you in the vicinity...
Anyway a marine trained shooter would be able to adapt to different rifles much more readily than the average Joe
Seems to me [
name your shooter] was a good enough shot or at least lucky enough to succeed in his attempt
Pretty sure the fellow in the video said he was testing the Carcano for its reputation (deserved or not) as being 'clunky' to operate. Given that, I can't see where the fellow would need to hurry.