William, the trigger pull is heavy at a tested 23 pounds and will almost certainly require both fingers, making the chances of an accidental trigger pull near non-existent. Since the trigger is a two finger trigger and designed to be pulled with two fingers, a standard single point trigger scale will likely be skewed. I estimate a two finger trigger pull of 16 lbs. Review here : thetruthaboutguns.com/gun-review-standard-manufacturing-s333-thunderstruck-double-barrel-revolver/

It varies but looks like it is average over 20 pounds with a 2 finger pull l, I just watched several reviews of this and it seems this pistol has issues stabilizing the rounds and can be extremely difficult to hit anything past 3 yards
https://youtu.be/zvLEoxBXcmU