Rest the action on the front bag. Float the forend or install an o-ring. Trigger job. I have only seen one Handi Rifle that wouldn't respond to tuning. A buddy had two Handis in .243. One shot well and the other would not group under baseball groups. The .444 is reputed to be one of the more accurate barrels. The .30-30 is usually the easiest to get to shoot.
