I watched that the other night, during the debrief I believe they mentioned they used a cut down 1/8 twist barrel, when it should've been a tighter 1/6 twist barrel, telling me they were sending accurate keyholes out to 500yds. Honestly it kind of bothers me that they couldn't do a good accuracy test with a proper barreled 74u clone. They put out a well produced channel and I'm sure they have the means/ connections to obtain a proper rifle.
Didn't watch but I do stretch out with a proper 1:6.3 twist AKSU. 200-250 isn't a big deal. I've gone out to 700 yards but was struggling to find the target with my red dot. Target was 1.75MOA at 700.