This is the website I found and used to do the trigger job on a number of 77 MK II rifles. It is very easy and doesn't take very long. These rifles caneasily be set at 3 pounds. I purchesed an RCBS trigger pull scale from Cabelas for about $20 before I started working on any trigger. I used a hobby or needle file set and a vice. After the stock and boltis removed there is one pin holding the trigger in placeand one pin holding the seer in place. This was VERY easy to do. I just wanted to let everyone know so that they can preform their own trigger job if they want to.

http://www.centerfirecentral.com/77trigger.html