Hi there. I shoot a Brigadier96. Have been for about 25 plus years. When I got this gun, I replaced the hammer with an elite hammer and other Ernest Langdon tuned parts when he started out tuning Beretta parts.
First off, they are very difficult to shoot accurately. Second, the sights line up at the top, not lining up the dots.
Because of the double stack and the factory wrap around grip, they tend to shift in your hand and make you shoot low and to the left. 7 o’clock. But that’s not all. Inherently, these guns tends to pull left on account of the open top slide as well. Takes a lot of practice to overcome that. Pay particular attention not to flinch, or yank the trigger. Particularly in double action. Resting the gun isn’t going to make a difference unless you have it in a vice.
Few solutions. Lighter trigger spring, extra power recoil spring, slim panels and lots of practice.
There was a running joke when our police service used DAO Berettas that if they ever shot at you facing them, just move to your left and they’ll miss completely. Practice, practice, practice.
If you have small hands, I suggest you buy one of the single stack Berettas available. I have large mitts and took me years to overcome the 7 o’clock target.