A short video of the 9mm Walther P99 shooting WWB ammo through AAC's excellent TiRANT can. The gun failed to return to battery a few times in the first video, but that was because it had gone thousands of rounds without lubrication. After a wipedown and a bit of oil, it performed flawlessly.
In the second half, please ignore the shooter's tendency to overemphasize the recoil. With the silencer on, recoil is pretty light and pleasant. :-)