Slow Motion: Roth Steyr 1907
Cool Forgotten Weapons Merch! http://shop.bbtv.com/collections/forgotten-weapons
Some high-speed footage of a Roth-Steyr M1907 pistol here for you - these are rotating-barrel, locked breech pistols with trigger lockwork much akin to a Glock. Namely, the action cycling puts the striker at half cock, and the first stage of the trigger press fully cocks the striker before releasing it.
For lots more information on the M1907 Roth-Steyr, check out these additional videos:
Roth-Steyr M1907 History & Disassembly: https://www.youtube.com/watch?v=baUTYMPsh9M
Roth-Steyr M1907 in a Pistol Match: https://www.youtube.com/watch?v=-xvCNEUnT4Y
C&Rsenal's History of the Gun: https://www.youtube.com/watch?v=MQTexxPSszU