BUT if the hammer is NOT drawn to full draw where the sear is engaged and released it will fire from a partial cock and the transfer bar will function to fire.
That must be a different type of transfer bar than any I have ever seen. Any tranfer bar I have see the trigger must also be pulled (and held) before/during/after the hammer is cocked. If your trigger was also being pulled by brush while the hammer was was being cocked by the brush, then yes I can see how it could happen, but only if both were to happen at the same time.
On all my transfer bar guns, even at half cock, were the hammer to fall, the transfer bar also drops out of the way. When de-cocking, holding the hammer with the thumb while pulling the trigger, as soon as the sear disingages, the trigger is released, even if I were to let the hammer slip off my thumb at this point, the transfer bar would move out of the firing position. If I were to slip off the hammer in the way to full-cock, the transfer bar also moves back out of the way and the firing pin is never struck. The transfer bars also did away with the half-cock position on my H&R/NEF and Rugers.
I still think something is wrong with yours if it would fire from the hammer being partially cocked and then released. The whole reson for the transfer bar is so it does not do what you are saying your does. I say yours is faulty and you should notify CVA.
