What exactly are you shooting? The only time I have used any external trigger was for a 22 pistol and it worked great. I couldn't be happier with mine and I use it a lot. I have found if the battery indicator shows much below two bars it will start missing a few shots. Is your project (bullet) weight set correctly ? Muzzle brake or no?I bought a Labradar and I cannot get the thing to work right. I believe I have all the settings correct, I bought two different brands of triggers, tried velcro and a magnetic mount for the triggers. One trigger manufacturer states you can the trigger when armed and it should give an error. Mine does not do that all the time, sometimes that will give an error and other times nothing (I tried with both triggers). Yesterday it worked about 10% of the time, most time not picking up the shot no matter where the trigger was mounted. Sometimes it would not pick up the shot but would erroneously pick up me moving the bolt as a shot and it would give a velocity a few hundred FPS lower that my actual shot. Nobody was within 50 feet of me.
I bought the Labrador new, added a plastic sight for aiming it, bought one brand of trigger and after the first trip bought another one with the magnetic mounts. I set sensitivity and to pick up off the trigger. I set distance and other settings. I tried it without the trigger and cannot get it to work. Any tips for me? I've gone through the manual and watched videos but I am convinced it is not working property since taping the trigger when armed it usually does nothing, even on different sensitivity settings.