Originally Posted by
keyshunter
The Ruger tang safety rifle has a hex screw adjustment on the trigger. Backing out this screw removes spring tension until the spring bottoms on the trigger. Backing the screw out further has no effect. Once this point of contact is reached, shortening the spring, or using a lighter one is the only way to reduce tension.
You are right on the button with that analysis and that's why Ruger doesn't provide instructions on it. Mine is fine on my 25-06 and from what I understand you're not going to accomplish more than about 1/2# less by backing it out before it has no more effect. Then it's replace the spring, as the spring itself on that model is the main poundage adjustment. Ruger specifically states not to attempt to decrease the weight below their preset minimum, but I know people are having the spring redone as stated above or are doing it themselves if they have the skill and knowledge. Also, don't go screwing around (pun intended) with the overtravel adjustment screw that is up higher on the backend of the trigger assembly that you can only get to by taking the trigger assembly out of the stock. Ruger actually had a safety recall for all M77 tang safety systems a number of years ago and it involves removing and replacing it with a hex head locking screw so it's not able to be adjusted. Ones made at the factory after the recall were epoxied so you can't even take it out to get at the overtravel adjustment screw because it is very delicate and can lead to accidental discharges if set wrong. Ruger etched a "T" on the underside of the bolt handle to designate the repair at the factory. If anyone has one that had that modification, they specify that no attempt should be made to remove it or it will permanently damage the screw and housing. If you have one that hasn't been done, you can contact the company and they will send you the instructions along with a free allen wrench and new lock screw to do it yourself. It's very simple IF you follow the instructions properly. The first page in the link that Big Uncle posted above has the information on the recall and what to do.