If your gun has a set trigger that can be fired unset, try some shots without setting the trigger. I found that I tend to anticipate the snap of a really light set triggers, and that combined with the flash of the pan made me flinch every time. I started shooting with the triggers unset, and the concentration required to squeeze the trigger,stopped the flinching. So, I went back to shooting the gun with the triggers set. And, in no time I was flinching again. I built a new gun with a simple trigger, that breaks at about three pounds. Mission accomplished, I shoot well, and don’t flinch.
Making sure that your lock time is as fast as possible is another trick to keeping the dreaded flinches at bay.
Hungry Horse