How do suppressors affect ammo velocity? (VIDEO)

Top Shot Dustin Ellerman tests a whole rack of suppressed rifles and pistols to see if the cans have any appreciable effect on velocity.

Dustin sends five rounds each of .22LR, 9mm, 5.56mm, .300 Blackout, 7.62x39mm, .308 and .338 both with and without a suppressor through the crony and then does the math for comparison to whisper up some interesting (if underwhelming) results.

Just if you are curious, the cans used in the test include a Griffin Armament Checkmate and Revolution, a SilencerCo Saker, and a Gemtech Trek and Sandstorm.