Here is an impressive video that shows what practice can achieve. I know this doesn’t prove anything regarding the JFK assassination case. However, LHO did reportedly practice dry-firing his rifle at passing cars while on his screened in porch in New Orleans in 1963. And Robert Oswald said in his book “Lee” that LHO had very fast reflexes.
First, here is an image showing the targets. The size of the Gunslynger competition targets in relation to a US dollar bill. Left to right the targets are shot at 10 yards, 25 yards, 40 yards and 55 yards respectively.
The guns are single-shot pre charged compressed air pellet rifles. Each shot requires the shooter to not only cycle the bolt but to also pick up a tiny pellet and load it into the gun with the business end pointed towards the muzzle. Now let’s look at what real speed is. This is the final round of the single load PCP class, a Daystate against an Air Arms rifle. Nic Gregorias who wins is a shooting Machine! Twenty shots with no misses. It only took him about 48-seconds to make all twenty shots accurately. That’s an average of about 2.4 seconds each.
So many items seem to have coincidentally happened that ended in the assassination of JFK. LHO’s reported practice with dry-firing his rifle is just one of them. But I cannot help believing that the reported practice had a real effect on his speed and accuracy shooting on 11/22/63.