I am not saying do not adjust the trigger ,i am saying know what you are doing & 3 lbs is fine on a hunting rifle, the original Win 70 trigger is easy to adjust the weight, on other makes youWhy? If you read my earlier post, every Winchester of that era that I own has a trigger set at about 5 pounds. On my 375 I had to completely remove the screw to get it down to 3 pounds. It won't go lower. 5 pounds makes it difficult to hold on target when pulling that hard on the trigger. Lots of rifles out in the field at 3 pounds and lighter.
Keep your finger off the trigger until you are ready to shoot. Keep the safety on until ready to put your finger on the trigger. Don't point the muzzle at people. You can hunt with a 3 pound trigger and practice safe gun handling.
No one should mess with the rifle if he intends to be unsafe. And you certainly would not want to scrape that epoxy or loc tight off the adjustment screw if you plan to be dangerous and sue Winchester when something bad happens. But if you are a responsible person and practice safe gun handling, the screw is there to allow adjustment....
must understand how the trigger works .I have seen rifles with sear angles changed & cocking pieces ground down, springs shortened & rifles that fired when the safety was disengaged, to the point of being dangerous by people who did not know what they were doing. With all the anti gun dick heads & media we do not want accidental discharges or shootings to fuel their agenda. Look what happened to Remington & the 700 trigger .