In 1963, it cost extra to add flash-suppressant chemicals to gunpowder which is why small arms like Jack Ruby’s pistol had small muzzle flashes but military weapons like Oswald’s Carcano or high grade rifles used by conspiratorial hit men did not.  

Rambo isn’t real.

The Final Truth: Solving the Mystery of the JFK Assassination

-- Edward Bauer

Paperback and Kindle: http://www.amazon.com/gp/product/1490350578