I used the trial and error method with mine. First, I made sure the sights (as awful as they are)were on with the fixed L barrel back trigger( why this barrel who knows?). Then I started moving the jackscrew this way and that. Gave up after a bit. Mounted my scope, zeroed the L barrel to it, and went back at the regulation. After 2 boxes of shells (I used Remington managed recoil) I got the L to hit dead on bull, and R about inch to the right at 50. In the end, I had moved my jackscrew 1 full turn towards the receiver. Truly no Rhyme or reason, I just hope it's on at 100, otherwise could take a while. Plan to go back and see how it shoots at 100 next. Triggers truly stink, but sure am having fun!!
Hope this helps
Rick
