The Howa 1500 has two trigger adjustment screws identified as the front trigger adjusting screw and the rear trigger adjusting screw. They can be identified by screws with locking nuts.
The front screw is for trigger pull, loosen the locking nut up and loosen the screw counterclockwise until you get the trigger pull you want and then tighten the locking nut back up. Probably won’t get it below about 3 lbs.
The rear screw is for creep, loosen the back locking nut up and turn the screw clockwise a little bit and tighten the locking nut back up. If you go to far the safety won't work, not a problem just back it off a little until the safety does work. You are not going to get all the creep out of it, so you have to play with these a little bit, don't get in a hurry.
This screws should adjusted maybe an 1/8 turn at a time!