What are some good drills i can do to prevent what i believe is jerking the trigger. My 10yd groups look like pic related. this is my second time shooting an automatic so I assume there are numerous things i could be doing wrong.
Basically... more practice. You can sit around with snap caps all day, but the real thing is simply training your body to not get spooked when really loud bangs happen. Also, double up on ear-pros. Wear foamies under your headset. Helped me quite a bit.
Sitting around with snap-caps in your chamber just pulling the trigger will give you a good idea of when the gun will actually go off, though.