I like my western stuff.
KM did a video with a revolver he claims was from SWIT, in actual fact he bought it off someone in the UK that did some nice work with a lathe.
Anyway, they take dan wesson shells, to lower the power down to about 280 fps low power ones are used with a smaller gas outlet.
He claims a 75 meter range on 0.48s
Regular shells, and low power shells have different coloured heads.
Those are high powered coloured shells.
No wonder the guy wasn't keen on the headshot.
Also, I'm not a KM fan, or watch his stuff, I just recognised the gun and facebooks algorithm put it on my feed.