I was shooting a Scorpion suppressed with 147 grain 'subsonic' ammunition, but was still getting a very 'cracky' report, so I do not think the rounds were subsonic. I presume the advertised muzzle velocity is in a pistol barrel, like 5" long, and since the barrel on a Scorpion is longer, the advertised 1050 is closer to 1150, or some such.
Has anyone chronoed 'sub sonic' rounds to see if they are truly? And does anyone have a recommendation for subsonic ... or do I need to go off and hand load to reduce the load?