[PhiloBedo]

If that were the case, the entry hole in the base of JFK’s skull would have been the same diameter as the caliber of Oswald’s rifle. It wasn’t. The entry hole was smaller, about 5.56 size.

[sinsofsolarempirefan]

5.56 calibre didn’t even exist in 1963. The Manlicher-Carcano rifle Oswald used was 6.5x52mm so it was already a smaller calibre than the usual rifle round.

[mlo]

"If that were the case, the entry hole in the base of JFK’s skull would have been the same diameter as the caliber of Oswald’s rifle. It wasn’t. The entry hole was smaller, about 5.56 size."

The skull was fragmented and missing. There was no intact entry hole recovered. To this day people argue about where precisely the hole was. You can't pin a conspiracy conclusion on such flimsy evidence.