Wanted to do this for a long time, as many people have been talking about dot tracking in open guns and how to tune a flat shooting gun. I thought I'd try to take high-speed video of the dot in my open gun while shooting various loads of .38 Super Comp that i've pre-loaded.
I tested the following loads :
115gr Montana Gold CMJ, 11.0, 11.2, 11.3, 11.5 gr N105
124gr Montana Gold CMJ, 10.0 gr N105
I don't see any noticable difference in the dot movement between all the loads except feeling a "softer" recoil in the 124gr CMJ loads.
Caveat: I had to shoot in a slightly weird stance because I had to position the scope infront of my Casio Exlim FH100 camera to align it properly. That definitely affected my recoil management capabilities.
I've also tried shooting at a man-sized target at 200yards offhand in the typical freestyle unsupported position and was amazed at how accurate this gun was.
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https://www.youtube.com/watch?v=4ZLTLEGkLYE